Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

Massive galleon from a box-office bomb docked in Genoa.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

An underground network of massive stone arches and their skylit vaults support ruins of portico structures above.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

A strange aquarium with stuffed fish, and almost no water for them to swim in.

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

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

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The unexpectedly beloved remnants of a controversial thermal power plant.

The world's first electric battery-powered submarine.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

The two massive guns that defended Cartagena Bay.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

The remains of a Zoroastrian temple that bore witness to a time when Aden was a flourishing trading hub.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This small fort played a huge role defending Puerto Rico’s capital city.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

This Brazilian palace island was once the site of the last grand ball before revolution.