A World War II-era sign in Valletta is a reminder of when Malta was besieged so severely that food needed to be rationed.

Though this large circular site is now named for the legendary king, its history dates back to the Neolithic era.

An impressive Neolithic henge with banks nearly 10 feet high.

One of London's lost rivers runs through a pipe over the tracks of this subway station.

Where the people of Gozo have been doing laundry for more than six centuries.

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.

A blast of nostalgia awaits visitors to this miniature indoor raceway.

The first regular high-definition TV transmissions were made from this seemingly out-of-place mast located on one corner of a Victorian-era entertainment venue.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

A lovely park home with a few interesting guests.

These purpose-built WWII air raid shelters, which run half a kilometer under the town of Mellieħa, are among the longest in Malta.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A homage to the King at the hotel where he revived his career.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Named after an outlaw who used the basin as a hideout.

Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

At the base of the Spring Mountains, a unique nursery packed with desert plants.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

This former lieutenant governor's home is brimming with curiosities.

Nevada's largest cactus collection stands outside a candy mogul's small factory.