The fifth-longest natural arch in the world, and the longest outside China.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The oldest university museum west of the Mississippi retains its 19th century feel.

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

A mysteriously dark cemetery monument fuels stories and legends galore.

A hollow cement depiction of time's inexorable effect on the human body.

An avant garde art museum at the University of Chicago.

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.