Locations
Locations are areas in the game that players can explore for as long as the event lasts. Some locations aren't tied to events (I.e. Void), and can be entered easily at any time.

Backwalls
The Backwalls is a rare event where a person mentions about the bus having a few hiccups or something isn't feeling right, afterwards all players (assuming they are not in Frost's Den) are teleported into the Backwalls.
Beter Box
The Beter Box is a small box located in front of the Bus outside, the box itself is rather small and has multiple moving images of Peter Griffin, as well as one in the center, which will always look at you.
Bloxdonalds
The Bloxdonalds is both an Event and a Location in Bus Simulator.
Noob Room
The Noob Room is an area in Bus Simulator only accessible by going through the door that lies far away from the back of The Bus, assuming the secret button has been pressed.
Glacier Cave
The interior is a massive cave filled with crystals, on the left there is a hidden passage way that appears to be a parkour that leads to NamerElf's actual spot. (While NamerElf is credited; it isn't present in its podium in the Art Gallery.)
GPS Locations
The GPS lists locations that the Bus is currently in, and this is the list that shows most of them. They're all just cosmetic, and have no correlation to the biome you're in.
The Bus
The Bus is the main part and theme of this entire game, it is composed of 3 different floors with about more than 30 seats distributed all over the floors including items and props.
Small Rooms
The Small Rooms are hidden areas within The Bus that are only accessible via the usage of a Cramped Cola, containing a few secrets, furniture, and more.
Void
The Void is a medium-sized black room that has two monitors in the top-right corner with Efeuc laying down next to them, and a sign simply saying "back", which being clicked or tapped on, will take you back to the front of the second floor on the The Bus.