This massive monument towers over the city as a constant reminder of the lives lost during Algeria's hard-won war for independence.

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

With over 10,000 lights, this engineering marvel lights up the city after dark.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

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

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

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

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

An underground city of salt.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

A Soviet era flat that refused to conform to the dull gray standards.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

A scenic canyon with thick forests and historic ruins.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

Magnificent Roman ruins lie vulnerable to destruction on the edge of the Mediterranean.

70 years of foreign military influence on the shores of Tripoli, Libya.

This triumphal arch is the only fully standing structure that remains from Roman-era Oea.

A fortress-like granary that has been continually in use for more than nine centuries.

A beautiful oasis town dating back to the Roman period still serves as reprieve from the brutal summer sun in Libya.

A surprising number of shipwrecks visible just off the Somaliland coast.

This cave located in the badlands of Somaliland contains some of the oldest cave art in Africa.