This massive redwood tree has a hole in the base big enough to drive through.

An optical illusion found amid a logged redwood forest.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

A winding path built in secret on the edge of the continent.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.