Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Where royalty waits in the height of luxury.

Discover what life is like on Amsterdam’s famous canals.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

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

A boulder carved into the shape of the cosmonaut's head.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.

Shop of curiosities with a dinosaur museum tucked in its basement.

A pillar is all that remains of a church built to honor a peculiar miracle.

A statue commemorating 'the greatest inhabitant of Amsterdam of all time.'

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This is the oldest Roman-made bridge in the city still existing in its original state.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

An oasis of beauty, tranquility and botanical research in the middle of Rome.

Among the busts of heroes of the Roman Republic of 1849, there is also a statue of a boy and his dog.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

Incredible labyrinth of man made caves.

This historical Netherlands fortress still bears the marks of its single siege.

The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.