An unusual round church in London with a Templar past.

Founded in 670, this ancient mosque is an architectural time portal.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

Idol made by King Jeroboam for the Israelites.

A magical oasis in the middle of the Negev Desert.

The largest known Ancient Egyptian obelisk.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The only museum with its curator—and her pets—buried inside.

This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

Giant topiary dog once played a role in a terrorist bomb plot.

A contemporary art installation housed within a Gothic cathedral.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A collection of weird and wonderful art fills a former houseplant nursery.

Charnel house at the foot of Mount Sinai.

The deadliest diving spot in the world is also a stunning geological marvel.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

This ancient structure is widely thought to be the oldest intact pyramid in the world.