A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Stairs often replace streets on the steep slopes of this old mining town.

A geological mystery on Camelback Mountain.

What is the Thing?

A spiritual vortex among the red rocks in Sedona.

Auburn's iconic eagle flight goes back to a 19th century eagle that dropped dead on the field after inspiring the football team to victory.

A miniature city built by a single hunchbacked monk.

A 30-mile-long glacially-carved canyon leads to a massive pair of glaciers.

A historic freight system that found the true gold rush is in tourism.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

Four-story concrete hotel never opened to customers.

A trading post in the North Pole where children send letters.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The king of U.S. high points towers over every other peak on the continent.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

The remains of the iconic train crash from the movie 'The Fugitive' can still be found rusting along the Great Smoky Railroad.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

According to folklore, Vermont's slanted windows were installed to keep witches from flying into the house.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

Scary metal statues adorn some of the signature buildings of Burlington, Vermont.