This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

Iran's colorful terraces are a rare geological masterpiece.

The palace of the King of Kings, burned by Alexander the Great.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

This ancient town is full of stunning Ottoman architecture and streets so narrow trash collection is done by donkey.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

Lebanese castle built by one man, over a lifetime.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

The ruins of a medieval monastery built on a perilous slope.

Despite producing just a handful of movies, a brave and lyrical filmmaker has an entire museum dedicated to him.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

A geological oddity topped with a 2,000-year-old pagan temple.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

Floating man-made island and upscale restaurant.

An invitation-only museum of items natural and bizarre, arcane and exotic.

Inside this museum, the history of the Walt Disney Family empire is on full display.

These subterranean storage areas hold emergency water reserves.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.