The town of Argleton has a postal code and appears on maps and even real estate listings, yet it does not exist.

This disused Cold War bunker has been restored to all of its early 60s glory.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

80 years of the Battle of Peasholm on a small English lake.

WWII artifacts, including the building itself.

England's largest white horse isn't even white.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Astonishing rock formations dot the Brimham Moor landscape.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

The heads of two giant mythological water horses honor Scotland's horselord past.

Scotland's only funicular railway is also the United Kingdom's highest.

The Titanic sails again in one Scotland man's backyard.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This black church sits alone among a field of lava rock.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

Cold storage for agricultural biodiversity.

Stockholm's tiniest statue is of a small boy looking at the Moon.

Once upon a time these giant concrete tanks were used by local fishermen to clean their wild-caught mussels.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

"The Donut" was built as part of an expensive, ill-fated engineering endeavor.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

The last fully functional fortress of Germany's World War II Atlantikwall.