Simple symmetry....

[dizzyg44]

So simple, but I like it so much.....

Any guesses of what it is?

the slight lens flare is artificial

 

[Ejazzle]

it makes me dizzy, i dont know where to look! haha

the roof of something?

 

[LaFoto]

Nice.
Yes, I would guess roof, too. Or garage door. But no. I think the corners are nearer to us than the centre is... maybe.

 

[dizzyg44]

yep, it's the ceiling............

Ceiling of the Gazebo in the middle of "The Battery" downtown Charleston SC.