This castle has links to Portugal’s founding and struggles for independence.

Where commuters walk through remnants of an ancient Greek necropolis.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

A unique seaside cave where Aleister Crowley faked his own death.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

Elaborate tile work in this railway station tells the story of Portugal.

A twisted steel beam from the wreckage of the World Trade Center is the centerpiece of this memorial for those who died on September 11, 2001.

One of the largest squares in Europe contains an entire artificial island.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

Over 100 artworks are painted on the walls of this town, making it an open-air museum of contemporary art.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

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

Rome’s legendary peephole vista is also a former Crusader stronghold.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

Inside this park resides a giant clock tower and ancient sundial that overlook the town below.

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.