This failed condo development was reborn as a street art hub.

This tiny, hurricane-resistant house in Galveston is one of the city's most notable architectural oddities.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

Slum Settlement Filled With Mountains of Garbage.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Founded as a refugee camp, now a popular tourist spot.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

It specializes in outsider art and artifacts of secret societies.

The winter home of thousands of beautiful snow geese and sandhill cranes.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This bazaar is one of the oldest in the Arabian world.

This spectacular mosque houses the second-largest chandelier in the world.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

One man's labor of love, Amman's oldest home has become a time capsule with its doors permanently open to artists and guests.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

An ancient capital city that dates back 3,000 years old and harbors many surprises.