Located inside a former bread factory, this museum explores a century of transportation history through innovations that were extraordinary or failures—sometimes both.

Elvis's own personal tropical hideaway.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

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

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

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

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

This mundane post marks the old location of the city's main postal hub.

A six-ton wedding present for the King of the Scots.

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

A sweet symbol marks the place where torturous executions were once carried out.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Eighty million natural history specimens call this gargantuan museum home.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Cathedral carved out of salt, located a mile below the earth's surface.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.