The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

One of the smallest towns in the United States.

Miraculous tree that seems to sprout out of solid rock.

An artist sees trees as a medium for sculpture.

A clone of a cloned tree that was so important it allegedly had its own guards.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

The hallucinogenic center of the ancient world.

This legendary city has been a tourist attraction for centuries.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

A white oak with property rights.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

This fairytale-inspired cottage was created by a university literature professor.

This creative sculpture was a way to "recycle" an old tree.

This state park was once an important Native American cermonial center.

This divisive system of turtle tunnels was built to save animals stranded after a highway split a lake in half.

A vast array of tropical plants collected by a vacationing couple.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Electrical pylon in the shape of Disney's beloved mouse.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.