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

For over two centuries, this palace served as a residence for the Holy Roman Inquisition's leaders, a courthouse, and a prison.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

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

This historic electric train has operated with regularity since the early 1900s.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

The world’s most biodiverse place when it comes to plants.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

A gallery of underwater art that can be visited by man and fish alike.

A violent name for a violent volcano.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

Tours drive right past this military burial ground to get the the Shirley Heights lookout.

A series of magical limestone formations along the coastline of the country island of Antigua.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

Divers can encounter an abandoned warship encircled by a giant kraken submerged in the British Virgin Islands.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

A 19th-century shipwreck turned thriving coral reef.

The oldest operating distillery in the BVI.

A hidden tidal pool that transforms into a frothy natural jacuzzi.

Dine on ceviche tacos in the sea at this floating restaurant only accessible by boat.

Swim or sail to this pie-slinging boat off the coast of St. Thomas.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.