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

A sharply wedged sundial marks the point at which each day in the United States begins.

This mesmerizing, colorful structure looks like a tent made from stained glass.

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

This fortress sits atop a centuries-old well system.

An annual two-week festival near the city of Riyadh when Saudis let their hair down.

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

An archaeological site believed to be the burial place of the "mother of us all."

This giant volcanic crater holds its very own field of salt.

Site where Moses may have received the Ten Commandments.

Village of slate houses, built on a white marble outcrop.

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

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

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

3D war panorama in Damascus built with help from North Korea.

One of the oldest monasteries in the world is a key pilgrimage site for both Muslims and Christians.

One of the oldest and largest castles in the world.

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

This ancient mountain monastery welcomes all manner of faith in an effort to keep Christians in Syria.

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.

The Syrian headquarters of alleged hashish-smoking assassins.

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

Ruins of the Crusaders' headquarters.