Ancient serpentine sacrifice holder that has stood the test of time.

A charming beach town in Turkey captures all the colors of the rainbow.

Roman ruins, natural methane fires and a lovely beach.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

Ottoman-era houses lovingly preserved.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

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

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

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

This famous city eluded concrete detection until the early 2000's.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

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

Iran's "Rose Garden Palace," built during 131 years of rule by Qajar kings, consists of 17 stunning structures.

This remote mountain shrine is one of the most sacred Zoroastrian temples remaining in the world.

Marked by the hand of the explorer Henry Morton Stanley.

The largest covered bazaar in the world.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

The tower in this 1,000-year-old mud-brick village seems to vibrate for no apparent reason.

Salt cured mummies continue to turn up in this Iranian mine.