The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The last remnant of a tree that helped prove to the world that sequoias are real—and they’re spectacular.

Ship-sized kinetic sculptural fantasy.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This statue is the only female representation of Rome's "talking statues."

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This house's itty bitty size means no humans allowed.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

A freedman baker’s lavish tomb has a relief showing various stages of Roman bread making.

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

According to local folklore, this Roman sepulcher was once a throne for the Devil.