Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Houses are tucked between, on, and underneath giant boulders.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

A complimentary beverage is offered to the bodega's resident rodents every day.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

You can cross from one country to another in a single hop on this little bridge.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

The world's oldest bookshop still in operation.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

One of the smallest bookstores on the planet.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

Dead weights honor the dead of Portugal's fishing industry.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

Built by the Ancient Greeks, this chariot bridge is still in use today.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Abandoned medieval hill town.

This peculiar Italian elevator runs both horizontally and vertically.