This circular artwork represents the ancient microscopic organisms that created the chalk foundations of the North Downs Way.

Few of the many visitors to this resort town know of its hidden Maya ruins.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

Neo-cave art on the macro scale.

Prehistoric history as seen through the lens of an outsider artist.

A safe place for the wild donkeys of a hot vacation destination.

Aruba’s first chapel.

This charming, narrow-gauge railway in the Thames Estuary is sometimes referred to as the "Train to Nowhere."

The largest greenhouse in the world is home to over one million types of plants.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

One Maltese man’s hobby became an extensive collection of restored automobiles, motoring paraphernalia, and antiques.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

These sprawling military housing quarters from the 1960s are now defunct and hidden in plain sight on Malta’s Mediterranean coast.

Despite the name, these small saltwater swimming pools have nothing to do with the Romans.

This unique building in the main square stands out among the city's typically Baroque architecture.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

This church is named for one of the most dramatic tales in the early Christian church.

The eyes and ears of this tower keep watch over Malta’s Grand Harbor.