London Eye.

london eye, originally uploaded by bintang4.

Looks like a bicycle rims to me. :)

Photo info:

Camera Model : Canon PowerShot A400
F-stop : f/3.8
Exposure Time : 1/500 sec.
Exposure bias : 0 step
Focal Length : 6 mm
Max Aperture : 3.84375
Metering Mode : Pattern