Any good ideas for builds in minecraft?

I have done everything I can think of I would like to get new IDEAS I've already done:

School
Hospital
Church
Town
Stores
Redstone Shop
Underground houses
Normal houses
Airplanes
Boats
Light house
Statues
Hotel
Farm
Rail Coster
Shooting range
Minigames

Please give me more ideas.

Hmm let me think.
Maybe a subway, a secret lab or a movie theater. Hope it helped!

Ahh build some barnyard

I have some question. Where we find the slenderman