The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A two thousand year old brothel uncovered in Northern Greece.

The ancient latrines of the Greeks, in all their public glory.

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

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

Ottoman-era houses lovingly preserved.

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

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

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

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

Foreign invaders almost left this lovely Caucasus palace alone—almost.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

A unique museum dedicated to culture and artistry of carpet weaving.

Resonant stone, that has been played since prehistoric times.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

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

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

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

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This micro-nation may be some sort of prank, but its constitution sure seems official.