Though they've since been renamed, these two streets hint at Dublin's darker days.

Experience what life was like in Ireland during the Viking and medieval ages.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

A famous big wave from Japan serves as a tribute to the victims of the disastrous Elbe flood.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

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

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

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

This historic streetcar system has been running since the 19th-century.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

Dedicated to the American general whose reply to a German demand for surrender was simply "Nuts!"

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

A brutalist gem towering over the heart of Milan.

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

Once the main gateway to Tokyo, sneaking through this checkpoint was a capital offense in feudal times.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

These small, triangular, colorful houses are a staple of Madeira Island.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

The oldest church in Mantua was buried for centuries under the facades of other structures.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

An enormous pair of straw sandals woven in the traditional way—to keep demons at bay.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.

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