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

Flames have been burning within this mountain for more than 2,500 years.

Qatar's oldest market can trace its origins back more than a century.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Be(w)ar(e) the moat around this historic Czech castle.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

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

Marked by the hand of the explorer Henry Morton Stanley.

The fire inside this temple has burned for more than 1,500 years.

A dreamy mausoleum honors Persia's most famous poet.

17th century mosque for Shah Abbas' harem.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

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

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

Luxury hotel turned into a refugee camp, then turned back into a luxury hotel.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

You'll find just about anything in this funky Tbilisi flea market.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

Unusual building appears to be haphazardly built from randomly piled bricks.

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

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

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