Slime Science: The Bus and The Endless Roads.
This was originally going to be two posts but I felt they work well enough together that I'm combining them.
The Endless Roads are odd. As far as I can tell they're a series of dimensions that are all interconnected with each one having a few similarities:
They all have a single straight road
They are connected by tunnels with yellow lights
The time of day is consistent across all of them
Other than that, they are all unique in their landscapes. From cities full of neon lights to shadowy woods with strange creatures, there's plenty to find along the road. Provided, of course, that you feel like driving for long enough.
One thing I've found useful about the roads is that the areas they take up in Barrierspace (Barrier's Domain) is actually pretty close to several Points Of Interest, making it convenient for universal travel.
Of course, if you have a road, then you need a vehicle to drive on it, and that's where The Bus comes in.
The Bus is an old project I worked on in my spare time when I lived in Haikyo. It was an old 3-layer tour bus with an open roof that I modified. There are plenty of new features on it:
An autopilot to keep from crashing
Red Matter Engine to keep the bus running without fuel
The second floor was gutted and replaced with a common area/kitchenette.
The third floor has a lot less seats and storage for tents to sleep in at night
Enchantments to keep wind from blowing everything on the roof off when driving more than 15 mph
More enchantments on the overhead storage of the first floor to allow for the safe keeping of important items.
All of the seats on the first floor were replaced with better ones and can be pulled down to act as mattresses in case weather prevents sleeping on the roof
On top of all of these, I also installed a portal generator that can summon tunnels to and from The Endless Roads. Allowing for the easy travel of a large group to a large portion of the multiverse.
(Edit added XX/XX/XXXX: Haikyo is dead now, guess I live on the bus :T)