The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

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

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

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

Sweden's oldest animated sign is still lighting up the skyline today.

A man has revenged his true love's betrayal through tears and stone genitalia.

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

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

The world's biggest floating museum in Gothenburg, Sweden.

Preserved "bog person" that is over 2,000 years old.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

The world's largest maze is a nature park with nearly 200 decision points.

The remains of the observatory of the Danish astronomer who first measured the speed of light.

Six beautiful wooden giants are hidden around Copenhagen.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Old Danish castle immortalized in Shakespeare's Hamlet.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Copenhagen's celebrated theme park and gardens.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.