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

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

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

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

The interior of this church has been turned into a memorial to locals who died in Croatia's Homeland War.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

According to legend a man pooped out the window of this tower to prove that it was straight.

In this truly magical place, rent hasn't been raised since the year 1520.

This fountain tucked away in a park is the focal point of the only "Green Basilica" in Germany.

What appears to be an ordinary bridge is actually a rare aqueduct.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

A preserved segment of the old irrigation canal recalls Taipei’s history as a “Water City.”

Taiwan’s iconic dish is in peak form here.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.