What are these large circular buildings? (Image attached) : r/whatisthisthing

What Is This Thing?”: 50 Times People Stumbled Upon Mysterious Objects And The Internet Offered Them An Explanation (New Pics)

5 Unusual Circular Buildings

7 iconic circular buildings around the world

Round buildings hi-res stock photography and images - Alamy

What is this attachment and why is it round? : r/whatisthisthing

White Circular Building between an Elaborate Archway, Modern and Futuristic Stock Illustration - Illustration of seamless, intricate: 270425441

Round buildings

WITT? Circular metal (?) plate in old apartment. Building probably built sometime in the mid 1800s. It's been painted over so I can't tell what material it is but there is a

Strange building in a field with excessive structural supports and large concrete emplacements : r/whatisthisthing