Princess Bubblegum's castle

Princess Bubblegum's castle (also known as The Candy Castle) is the home of Princess Bubblegum. It is located in the middle of the Candy Kingdom, between the Rock Candy Mountains.

Appearance
The castle includes red pathways, tall, bent towers, and the central tower, which is straight and wider than the others. It is cream colored, like vanilla ice cream, and has been seen dripping. It also has a moat,that has been shown filled many times. Two large statues that are actually the Guardians of the Royal Promise and try to protect the kingdom when otherwise needed. It has a drawbridge (which is a piece of toast with jam on it) in the front, and leads into a courtyard as seen in "The Duke." The castle was the location of the party in "Slumber Party Panic." One of the narrow towers appeared in "The Enchiridion!," when its watchtower was destroyed by Cinnamon Bun, who was attempting to do a back flip. It is unknown if the watchtower was rebuilt. In "Ricardio the Heart Guy," when Finn and Jake enter Princess Bubblegum's castle door, two sculptures of Finn and Jake are shown at both sides of the door, both built with a muscular body. In "Go With Me," the portcullis is revealed to be made of pretzels. The castle is surrounded by lollipops.

Rooms
There have been numerous rooms and secret passages shown in Princess Bubblegum's Castle.

Princess Bubblegum's bedroom
This was shown in "Mortal Recoil" when Princess Bubblegum was put in there to rest. It is pink all over and has several hearts on the wall. She has what seems to be a computer and a glass cupboard with two crowns in it but the rest of her bedroom consists of pink cabinets. There is also a bathroom in Princess Bubblegum's bedroom. In the bathroom is a bathtub, sink and toilet.

Grand hall
The grand hall was first introduced in "Slumber Party Panic" as the "party room." It has a large carpet in the front, and two large doors. It can hold all of the candy citizens.

Also in "Slumber Party Panic," Princess Bubblegum and Finn go into a side room adjacent to the Grand Hall to discuss the zombies. This room does not have any lights, but it is clear enough to see.

Lab
In "Slumber Party Panic," Finn and Princess Bubblegum go into another room to figure out the Decorpsinator Serum. This room is white, with beakers and test tubes everywhere. There is also a chalkboard in the room.

Secret room
In "The Enchiridion!," Princess Bubblegum and Finn go into a secret room through the bottom of the Candy Castle. The room has blue glowing spots on its walls. The same room is seen in "Death in Bloom" when Finn and Jake are playing and taking care of the Princess Plant.

(Possibly) Princess Bubblegum's tea room
In "The Duke," Princess Bubblegum and Dr. Ice Cream are seen in a colorful room with a lot of the princess's pictures in it. There are a few pictures of Finn in the room, shown below. There is also a green teapot in the room. There are vases and jars with colored candies in them and a long carpet. Outside of the room, there is a banner with a small symbol on it. However, the symbol could be a tassel.

Hallways
In "The Duke," a hallway can be seen. It is orange, possibly due to candle light though.

The inside of the tree
In "Mortal Folly," Bubblegum reveals the inside of the tree stores The Lich, who was sealed away in amber after being taken down by the hero Billy. He subsequently escaped after possessing the waving snail, who opened a crack that allowed for it's release. Due to The Lich's being in the tree, Princess Bubblegum must always wear her crown with a jewel to prevent brainwashing when in her castle though she may have been possessed in "Go With Me?" because she didn't wear her crown when she was sleeping. This is also the location where The Snail became possessed by the Lich.

The wall
In "What Have You Done?," Princess Bubblegum says the secret word "Tubllaw" and a face on the outside wall appears. It asks for the password and Princess Bubblegum tickles its cheek. It opens and leads to a dungeon.

Secret dungeon
In "What Have You Done?," there are a lot of secret doors and secret passages that lead to this dungeon. From this episode, Jake said "Wow, there's a lot of secret doors in this place."

Expanded list of inhabitants

 * Princess Bubblegum/Prince Gumball
 * Peppermint Butler
 * Manfried
 * Science
 * Earl of Lemongrab (Formerly)
 * Cinnamon Bun