This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

A condom-covered Thai restaurant that is more concerned with birth control than food.

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

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

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

This probably wasn't what Mao had in mind.

Home to over 200,000 artifacts, this museum attempts to guide visitors through the ancient history of Beijing and Imperial China.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

This French colonial post office is arguably the grandest in all of Southeast Asia.

The wartime prison now features haunting sculpted reenactments of the atrocities that took place there.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This dangerous-looking suspension bridge may have been too unstable to remain open.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Despite being tiny and rural this Georgian airport looks like a sci-fi boondoggle.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

Large miniature theme park with 100-plus models.

1513 Turkish world map, full of European state secrets and snarky commentary.

A marvel of Byzantine engineering under the streets of Istanbul.

A Turkish ghost town abandoned in a population exchange with Greece.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

In this historic region, homes and churches are carved into ancient volcanic rock formations.