The second-deepest known cave on Earth, hidden in an extremely remote mountain region.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Fortified homes of highland warriors that are still in use today.

The first skyscraper to include a Ferris wheel built into the facade.

Small church on top of a huge rock column.

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

Ancient rock-hewn town that witnessed key events of Georgian history.

Underground monastery and fortress.

This beautiful train graveyard is one of the largest collections of steam locomotives in the Mediterranean and Europe.

Climb a set of vertiginous stone steps to the top of this impressive ancient edifice.

A section of the long chain that blocked enemy ships from entering Constantinople.

Balanced on four stone pillars, this historic tower was the site of a tragic political assassination.

A beautiful 19th-century Armenian mansion is preserved above an unassuming cafe.

A small mountain at the crossroads of Turkey, Iraq, and Syria that some believe was the landing point of Noah's Ark.

This mysterious cliffside carving of an ancient Hittite deity has baffled scholars for centuries.

Natural rock formation, or biblical artifact that saved Earth's wildlife two by two?

This shuttered power plant is now Turkey's first industrial archaeology museum.

This eatery re-creates dishes from the Ottoman Empire so you can dine like a sultan.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

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

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

This ancient city - home to nine civilizations - is soon to be buried under 200 feet of water.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.