There are many locations around where the Happy Tree Friends work or go to. Just about all of them have been the death place of someone.
It only appears in the episode Wingin' It, where Flaky, Lumpy, Giggles, Petunia, Pop, Cub, and Cuddles go for an airplane trip. The Mole also works here as a security guard, as does Sniffles as one of the pilots, and Mime as a flight attendant.
A barbershop first appeared in Mime to Five, where Disco Bear would be a customer and Mime would be hired to wipe the windows. It made another appearance in Easy Comb, Easy Go, once again having Disco Bear, in addition to Lumpy, as a customer and having the Mole as a barber.
Comic Convention Center
First seen in Wrath of Con, this building is a comic book-related convention center (i.e. Comic Con) that Sniffles and many other characters attended to meet Splendid. The center was destroyed by Splendid's super breath.
A cafe is shown in several episodes. It can be dangerous, however, to the unwary lunch goer (as can be seen in Ipso Fatso, the place has many floor hazards, which cause Lumpy to fall over and break his back on his bicycle). Giggles works there in Concrete Solution, Petunia works there in A Change of Heart, and The Mole works there in The Carpal Tunnel of Love. In On My Mind, Giggles and Flippy are on a date, sitting at a table just outside the cafe. Most of the restaruents have a picture or structure of what it sells on it's top.
A small burger joint, similar to the cafe, also makes an appearance in Flippin' Burgers. The building is almost completely destroyed during one of Flippy's rampages. Petunia works in the joint as a cook.
Russell owns a pirate-themed restaurant in Mime to Five, which is shaped like a pirate ship and has a drive-through. Mime works there until he accidentally kills Pop, Cub, and dozens of Generic Tree Friends when the high frequency pitch of the call box causes the windows of numerous cars to shatter and impale their occupants. After that, Russell fires him.
A doughnut shop is seen in The Chokes on You. The exterior of the building resembles a giant cup of coffee with a doughnut floating over it. Lumpy and The Mole are seen working there as employees. After deep frying three doughnuts, Lumpy decides to eat some, causing him to choke and leading to some gruesome results for him. Flaky is later seen there as a customer. She eats a doughnut made out of Lumpy's flesh and ends up choking on it.
It appears in Spare Tire, when Lumpy refills The Mole's gas tank. The Mole drives off and causes a gas leakage while Lumpy is occupied. As the result of a lit match being thrown into the gasoline puddle, the gas station is destroyed in an explosion. Its appearance resembles a vintage Texaco Gas station. A gas station also appears in Don't Yank My Chain, in which it appears while Handy and The Mole is refueling their car.
Hospitals and Clinics
Places where the Happy Tree Friends go to heal their numerous and usually massive wounds, from ear injuries to heart attacks. Giggles usually works as a nurse while Lumpy and Sniffles both act as doctors (in episodes like Hear Today, Gone Tomorrow, A Change of Heart, or Chew Said a Mouthful), as well as The Mole in A Sucker for Love. Toothy acts as a dentist in Nuttin' but the Tooth. Sometimes, for more severe injuries, such as in I Get a Trick Out of You, characters are taken to a hospital.
The laundromat first appears in From Hero to Eternity. Splendid goes there to clean his laundry, annoying Pop when he flies in and out to help people. After Cub climbs into his laundry basket, he unknowingly kills the little bear by having him shredded in the washing machine, turning all his clothes a bloody red. Another laundromat is seen in By The Seat Of Your Pants. After having his lower waist skinned, Lumpy tosses his skin into one of the machines, shrinking it to resemble a pair of swim briefs.
A library in the HTF world appeared in the episode Random Acts of Silence, where Flippy is shown to be working. He is disturbed several times by Mime and finally flips out when Sniffles and Nutty activate the fire alarm. After killing Sniffles, Nutty and Mime, he stamps Flaky's returned book using Nutty's arm.
A movie theater with a folding screen where the Happy Tree Friends go to enjoy Buddhist Monkey films. This was the location of one of Flippy's rampages, in Keepin' it Reel. It also appears in one of Nutty's fantasies in A Sucker for Love.
The movie theater also plays a bigger role in the HTF Break episodes, at least fan-wise. It appeared in the following consecutive Break shorts: Happy New Year, Take Your Seat, Moppin Up, Bite Sized, Pop & Corn, Butter Me Up, Cheesy Does It, and Tunnel Vision. Most of these Breaks featured the message Happy Tree Friends is dead!, which sparked controversy among fans that the series would be cancelled. However, it was later proven otherwise, and that the show would continue making more episodes.
The museum has made two appearances so far. In Idol Curiosity, it is shown to be owned by Sniffles, who was about to make The Cursed Idol an exhibit before its curse killed him and destroyed much of the facility. The museum also briefly appeared in Gems the Breaks, where it was robbed by Lifty and Shifty.
The Daily Acorn, first seen in See What Develops, is the newspaper redaction for the Happy Tree Friends' universe and a parody of The Daily Planet from "Superman". Splendid works here as his alter ego, wearing a fedora, tie, and glasses à la Clark Kent. Lumpy is the editor of the paper, while Sniffles and The Mole are photographers and Cuddles is a reporter.
An office building appears in See You Later, Elevator. It has an elevator in which Mime, Cuddles, Giggles, and Sniffles ride in the episode. Handy try to get in, but fails. Pop and Cub wait for the elevator, but Pop throws a match out the window. It lands on Toothy's papers, causing a fire to spread toward the building until it eventually explodes.
A post office makes an appearance in Letter Late than Never. Lumpy is shown working there as a mailman, with evidence of at least one other moose working there in the past.
First seen in Don't Yank My Chain and appears later in A Sucker for Love (in Nutty's imagination) and A Bit of a Pickle. This is the place where Happy Tree citizens go to if they have committed a crime or any other wrongdoing. Lumpy has been seen working there as a sheriff/officer often.
The sawmill first appears in Don't Yank My Chain, where Handy and The Mole use a giant saw blade to cut their chain in half, only for it to claim the latter's life. It appears later again in My Better Half, killing Handy and Petunia because it was built unfortunately close to a tunnel-of-love ride.
The school is where the Class Act was held. Toothy accidentally set it on fire, which later caused it to explode, killing all the characters in the episode. Though shaped like a school house on the outside, the interior seems to be nothing but a theater. However, this could have been a separate block in the school.
The school is also featured in the Something Fishy. In this episode, the school is more than just a theater, housing classrooms, restrooms, and hallways as well.
A skating rink seen in Rink Hijinks, which is a popular hangout. Disco Bear seems to frequent the scene, as evidenced by his moves on the floor. The rink also has a Buddhist Monkey crane game machine in a small arcade.
Lumpy owns a butcher shop in Meat Me for Lunch. Disco Bear is later shown exercising in a butcher shop freezer in Ipso Fatso. Both times, it is targeted by Lifty and Shifty, who only make a successful theft in the latter episode. The shop once again appears in A Change of Heart, this time being owned by Cro-Marmot.
A toy store owned by a notoriously greedy Lumpy is seen in We're Scrooged!. He increases sales by selling the murdered Toothy's body parts as toys, but eventually meets his end when a shelf falls over on him and a piggy bank crushes his head.
A lamp store owned by Petunia is seen in As You Wish. It houses a variety of elaborate lamps, ranging from table lamps to ones hanging on the ceiling. On the outside, it is shaped like a large brick building. Petunia somehow ends up with a pair of magic lamps (housing Lumpy and Giggles) that, when rubbed by its owner, summon a genie who then grants the wish of the owner. It is shown to be located below two cliffs. The interior of the store is eventually destroyed when a large bag of coins crashes into the store and destroys the store and lamps. A hot air balloon and a spaceship also crashes into the roof. Petunia eventually dies when the lamp containing Lumpy crushes her head.
A pet store appears in Doggone It. It is robbed by Lifty and Shifty, who steal several puppies, as Pop takes Cub inside and they subsequently adopt Whistle. The store houses animals such as dogs, cats, birds, bunnies, fish, and reptiles.
Appearing in Mime to Five is a gag shop which sells novelty items. Its front entrance resembles an open mouth with Groucho glasses above it. Next to the entrance is a window which displayed a unicycle that Mime wanted to buy. However, by the end of the episode, it was already bought by Cro-Marmot.
A candy store is shown in A Sucker for Love. Displayed in the window is a heart-shaped box of chocolates, which catches Nutty's attention. He is not able to get inside due to the door being locked (possibly due to the owners of the store being aware of his sugar addiction). A candy cane-shaped sign, hanging over the door, then hacks Nutty's tail off, leading to him being gruesomely killed.
A music store appeared in In a Jam and Autopsy Turvy (Double Whammy Part II). In the former episode, Cuddles went in the store to buy a guitar from Mime, later doing so after earning a coin by donating his blood. In the latter, it served as a place of battle for Flippy and his evil counterpart. The Mole also worked there as a janitor, possibly being the proprietor of the store. Lifty and Shify were seen robbing the store before being killed in Flippy's battle.
A supermarket is seen having its grand opening in See What Develops. Nutty is seen in the expansive candy section of the store in the previous episode, Chew Said a Mouthful. The supermarket makes a cameo in the episode Concrete Solution.
The carnival is where the Happy Tree Friends go to for a day of fun. Lumpy has worked as a carny there in Pitchin' Impossible and has owned the park in The Wrong Side of the Tracks. Flippy and Mime also worked there in Double Whammy Part I, as a carny and an entertainer respectively. There was a haunted house there in Boo Do You Think You Are?, though this ride actually kills its riders. When Lumpy owned the park, the roller coaster was a popular attraction, even though it was in serious disrepair. The carnival also hosts livestock and produce competitions, which Lumpy wins with his giant ear of corn in Aw, Shucks!.
A graveyard in which some of the action of the show takes place. Most of the main characters are buried there by Lumpy in Remains to be Seen, but they come back to life as zombies (only to be reburied again at the end of the episode). The cemetery is shown to be next to a small baseball field in Can't Stop Coffin, in which Lumpy also works as a grave digger. In this episode, it is also revealed that Pop is indeed a widower rather than a divorced father, as he is seen mourning at his wife's grave with Cub. This episode also shows The Mole to have an underground house beneath the cemetery and the baseball field. It is also seen in Read 'em and Weep, in which Pop is seen mourning at Cub's grave along with Lumpy.
A circus owned by Lumpy, seen in Mime to Five. Flaky and Cro-Marmot work there as trapeze artists, Cuddles works as a daredevil, Toothy operates a cannon, and Mime does odd jobs (such as cleaning up after the animals). After Flaky's blood splashes on Lumpy, his killer ducks escape their cage and kill him, eventually attacking the spectators and knocking down the tent.
Drive-In Movie Theater
A Chinese garden with numerous pink flowers and plants. Buddhist Monkey often goes there to meditate. The Generic Tree Ninjas tried to attack it in Enter the Garden. It also appeared in Three Courses of Death, in which it shows the grave of the Sensei Orangutan.
A small playground with a slide, a see-saw, and a swing set (as seen in Blast from the Past and Swelter Skelter), as well as a nearby merry-go-round (first seen in Spin Fun Knowin' Ya). The equipment is in poor condition, as the slide curves too high upwards at the end and the see-saw is so rusty that it will not even budge unless it has been oiled. The entire playground, with the exception of the merry-go-round, was dismantled by Sniffles in Blast from the Past after Cuddles, Giggles, Toothy, and Lumpy kept getting killed in freak accidents. Because the merry-go-round was left intact, Cuddles, Giggles, and Toothy jumped on it and were spun off by Lumpy to their deaths, unbeknownst to Sniffles. The playground is also shown in Treasure Those Idol Moments (with a swing, sandbox, and a jungle gym) when The Cursed Idol caused the mysterious deaths of Toothy, Cub, Sniffles, Flaky, and Lumpy. It made a reappearance in I Nub You, where two swing sets were seen. It also returned in All Work and No Play, where it also contain a set of monkey bars.
First shown in Let It Slide, the pool features four water slides. Upon sliding down, Lumpy caused the deaths of Cub, Flaky and Cuddles, also shocking Giggles after losing his trunks. In By The Seat Of Your Pants, it more resembles a public pool. Replacing the water slides are seat rows for spectators.
A ski resort where the characters often snowboard, build snowmen, and go skiing. It appears in the Ski Kringle, in which Lumpy impales Sniffles and Toothy with his skis. It has a large ski lift which goes up a large mountain in Ski Ya, Wouldn't Wanna Be Ya!. Lumpy appears to be the only employee at the resort, as seen in Ski Patrol. Like many of Lumpy's jobs, he ends up killing everyone he tries to help. Known Visitors: Lumpy, Flaky, Disco Bear, Sniffles, Petunia, Toothy, Giggles, and Cuddles.
The summer camp appears in Camp Pokeneyeout. It is a place where scouts participate in activities such as building carts, playing with slingshots, and roasting s'mores.
Visited on an excursion by Lumpy, Flaky, Cuddles, Toothy, Petunia, and Sniffles in From A to Zoo. The zoo does not keep the animals locked up properly, as a vicious baboon escaped his cage and it was easy for Petunia to fall into the snake enclosure. They also have numerous chicks there, much to the dismay of Flaky. The place causes the death of Cuddles, Toothy, Sniffles, Petunia, and (Debatably) Lumpy and Flaky.
A large city where The Mole and The Rat have a fight in Mole in the City. It also appears in Mirror Mirror, in which Splendid and Splendont have a large battle. It has a volcano, a mouse-trap factory, and is near the ocean. Known residents of the city: The Mole (Debatable, and in only one episode), The Rat, the Elephant Balloon Vendor, the Pig Child, and Generic Tree Friends.
Seen in From Hero to Eternity and Who's to Flame?, the town is inhabited by most of the main characters, as well as some secondary characters. In From Hero to Eternity, the town's residents were sucked into a whirlpool, setting off an underground pool of lava which came up and burned the town. In Who's to Flame?, the town was destroyed by an explosion that started as a small fire.
In Double Whammy Part I, Lumpy and Flippy can be seen at therapy. First, Lumpy and Flippy uses deep breathing meditation exercise. Next, Lumpy gives Flippy a stress toy. Last, Lumpy uses hypnosis for Flippy.