Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

This super steep hike ascends 2,000 feet in less than a mile.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

The highest bridge in America was built for an almost unnervingly small amount of money.

The largest self-built castle in the U.S., six decades in the making.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

An offbeat angle on the ocean viewed through an antiquated lens.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

27-room home built with the fortune of a sugar magnate.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Stunning examples of Russia's 18th-century wooden architecture.

A storybook European village in Berkeley.

A haunting collection of the vanished and disappearing natural world.

The second-deepest known cave on Earth, hidden in an extremely remote mountain region.