The world's largest dead polar bear, immortalized by taxidermy and Hunter S. Thompson.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

This mural changes every few years.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

As a show of peace, a Japanese naval pilot gifted his 400-year-old Samurai sword to the Oregon town he bombed.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A house carved into a rock in the 1940s.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.