An unexpected treasure trove of military oddities, Turkish interior design, and North Korean art.

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

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Check the time in 145 countries at once with this East German relic.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Towering sandstone rock formations where 'The Chronicles of Narnia' was filmed.

Dedicated to the works of the legendary special effects artist.

Prague's "Little Hanoi" is one of the commercial centers of Czechia's Vietnamese community.

Light still pours into the ruins of this ancient Islamic observatory.

An 18-meter-long sarcophagus of a constantly growing dead prophet.

The Avenue of Mausolea is a series of grand palatial tombs.

A Soviet-era health spa complete with radioactive bathing and shock therapy.

The world's second-tallest flagpole stands proud despite dropping rank.

Where the father of Persian poetry is laid to rest.

This dark, damp, perilous tunnel is the only passage from north to south Tajikistan.

A stunning blue-green lake located in the Terskey Alatau mountain range.

According to myth, there's a bloody explanation for the beautiful bright red color of this rock formation set amidst alpine vegetation.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Art and armour fill every inch of this rich kid's Italian villa.

One of the oldest, well-preserved water treatment facilities in all of Europe.