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

What is this round thing that is embedded in my works floor? : r/ whatisthisthing

Two large round fan-type things, made of metal, found outside a dumpster area by a building that used to be for selling solar. ~3'x3'. Building abandoned now, maybe being remodeled. Maybe industrial components for HVAC? QR code pulled up tubular

5 Unusual Circular Buildings

Large hole above garden steps, house built around 1820 near coal mine and railway operating between 19th-20th century. 10ft deep, brickwork looks more recent. Puddle inside is 2 inches deep. Pipe is

Round buildings, circular architecture - e-architect

Circular Building At Its Best

Circular futuristic building hi-res stock photography and images - Alamy

Premium Photo Arafed circular picture of a building with a circular glass facade generative ai

Circular office building hi-res stock photography and images - Alamy

Round buildings hi-res stock photography and images - Alamy

World's most amazing circular buildings - Rediff.com

Concrete cube, roughly 2ft tall on patio of Victorian home in Manchester, UK. Has some kind of circular emblem embossed on it. The whole thing is solid, the top doesn't come off.

Architectural Drawings: 8 Circular Plans That Defy Convention - Architizer Journal