These towering cliffs jut dramatically from the middle of a barren desert.

A 19th-century fortress and collection of artifacts offer a tour of Saudi history.

Lions carved into the rockface adorn these two tombs built into the mountains of Dadan.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

The rocks around this mountain are filled with so many carvings that the area became known as the "open library."

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.

An enormous public square and parade ground built to celebrate Ghana's independence.

The clever workshop that has been designing some of the most unusual coffins imaginable.

This grounded passenger jet is now a restaurant, complete with rows of seats and “flight attendant” servers.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

The Voodoo Superstore of the world.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Africa's Venice on stilts.

Where thousands of slaves passed through the "Door of No Return."

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

A small island in Lake Garda that was used as a burial site, pirate hideout, and a monastery.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Pilgrimage site for star-crossed lovers.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

These elaborate gothic monuments honor Verona's medieval lords.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.