A few skyscrapers huddled together. There's a meeting place in the center.

It has arenas and obstacle courses for flying.

There's a museum of random old things like Ming vases and Gameboys and art.

There's a garden designed after medieval ones with tunnels of roses and such. It leads to zones where you can't fly: an RC airplane and kite place, a pool with a hot tub, and a park with a koi pond you can view above ground and underground thanks to a room sort of like an aquarium, but with comfy plush benches and such. There are charging docks for people's wings along the walls and fences.

The ceilings are high and what would be three stories for us would be one for them.

They have an aviation museum and the animal bit of the natural history museum.

Do they have virtual reality games? Definitely. The Skystreakers can have dogfights as planes or compete in races to a hidden treasure in a Mayan temple or Egyptian pyramid with traps and puzzles and such.

Do they have a pool? Definitely. It's technically two shaped like bird wings that meet together at a dual waterfall. It's also underground.