Remnants from a time before electricity.

Inside this Krakow church, an explosion of psychedelic color.

Krakow's own version of the Hollywood Walk of Fame.

A set of ancient rock engravings that date back to the Neolithic period.

The only remaining section of an aqueduct that used to supply water to Manila during the Spanish occupation.

Venice's island of the dead.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

This "Atomic Egg" appears on the city of Garching's coat of arms.

This impressive gate is the only remaining remnant of a Spanish naval station.

One of the most easily accessible examples of the rare 1960s UFO houses.

One of the last designs from architect Oscar Niemeyer.

This mountainside open-air museum was built from the ashes left behind by a devastating fire.

Some locals believe the fabled lost gold of General Yamashida is hiding somewhere beneath the city.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

100 year tradition of fist fights, marked by marble footsteps.

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

Controversially restored in the 1970s, this giant 15th-century mosque is shrouded in legend.

One of the first sewers in the Americas.

This memorial park is also the original site of Queen Cleopatra’s Caesareum, whose pillars now stand in London and New York.

The lost library of Alexandria, revived as a spearhead of cultural preservation.

This restaurant sits within the walls of an 18th-century fortification that once defended the city’s old quarter.

This sculpture in the Miami Design District is one of the few public works of Virgil Abloh, an internationally recognized fashion designer and creative.

The tomb of one of the greatest travelers in history.

Ancient Phoenician and Roman tombs carved into the rock overlook the Moroccan coastline.