Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

Abandoned medieval hill town.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This downtown Dallas art installation is always on the lookout.

This giant crucifix is like U2's Joshua Tree for Swedish death metal fans.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Norway's oldest cathedral still in use.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

The former home of Norway's greatest romantic composer.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

The library's graceful rotunda is like a bibliophile's temple.

A former suicide bridge is now accumulating symbols of love instead of a body count.