This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

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

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This poignant art installation raises awareness of violence against women.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

This half-finished "city of toys" was almost Italy's own Las Vegas.

Every birth, death, and marriage is recorded in these color-coded leather-bound books.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A centuries-old forgotten underworld lies beneath Malta.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

Banksy's image of a naked man dangling from the window of a sex health clinic.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

This subterranean necropolis holds three floors of antler-dug grave caves.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The largest greenhouse in the world is home to over one million types of plants.

A 142-foot-tall Q-tip on Bristol's skyline.