A 1,500-year-old ghost settlement is slowly fading away.

This ornate mosque is said to hold the remains of Muhammad's granddaughter beneath its dome of pure gold.

What is left of the pillar of Saint Simeon, the voluntary martyr who climbed the column to give his sermons, remaining perched there for thirty-seven years.

Only a handful of these gorgeous historic waterwheels remain but even those are in danger from local unrest.

Ruins of the Crusaders' headquarters.

Mysterious lost empire of the Silk Road.

Charnel house at the foot of Mount Sinai.

Brightly painted boulders scattered throughout the Sinai Desert.

This grand hydraulic installation has provided water for townspeople since the Middle Ages.

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

The best-preserved Roman small town in North Africa.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

The bears of Bern have been a city highlight for over 500 years.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

In memory of The Blur Building, the temporary exhibition pavilion of vaporous nothingness.

Swiss vineyards in a UNESCO heritage site.

An ancient knight and a symbol of the city's freedom.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

Large collection from the 3rd millennium BCE.

This famous archeological mystery may be an ancient example of movable type.