Where are the biggest hangout maps?

[SusnicMania64]

What is the hangout maps the have the way to travel to vanilla maps and the items/mechanics + special stages in them and in one of them, they Have a master emerald and chaos emeralds in one of the sections in one of the hangout maps
(Btw they are separate maps and made by different people and they're all grey until you get too a different area) Also one of the maps on the right there's a free area where you can run around and test your character
(Here's some free fries)

 

[cheeseboi.]

What is the hangout maps the have the way to travel to vanilla maps and the items/mechanics + special stages in them and in one of them, they Have a master emerald and chaos emeralds in one of the sections in one of the hangout maps
(Btw they are separate maps and made by different people and they're all grey until you get too a different area) Also one of the maps on the right there's a free area where you can run around and test your character
(Here's some free fries)

*eats fries*

btw this is the biggest hangout map i could find

[Open Assets] - Srb2 Station V1.2.2 - The place to test your mods

This wad has nothing to do with Gaga Hax's srb2hub, its only inspired by it, also keep in mind this features spoilers for the entirety of srb2 Originally inspired by srb2hub, Srb2 Stations offers modders alike a place to test out interactions...

mb.srb2.org

 

[Jammin']

Pretty unhelpful, but there was one I used to play on often called Car Dealership. It was quite expansive for a hangout map in 2.1.
I’m not aware of any 2.2 ports.

 

[Sls64LGamingBro]

Trash Hills is another big hangout map. It's a great map that allows players to test their character's momentum, speed, and acceleration. It's an obscure addon though, you might find it in Hangout servers like Kori's Hangout Server. However, there is an actual post made by Othius that they made on this Discussion thread by thegdandsm64fan123. So at least there's a way to access the addon itself. Anyway, it's still a great map. Suggest going ahead and playing around using your Character!