Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

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

Denmark's famous pseudo-hill.

This huge industrial sculpture looks like a UFO and a factory had a baby.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

Model Trains and Much More in Hamburg.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Hamburgers are intensely proud of their tunnel beneath the river.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

When the rain falls, this drain system turns into a musical instrument.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

Joe Cocker's 1988 concert at this site in East Germany marked a changing sea tide that would eventually lead to reunification.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

An exquisite panometer representing Dresden as it was from 1695 to 1760.

Ruins of a German Castle on top of a towering stone pillar.

An ornate century-old elevator still connects the two halves of Bad Schandau.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

The mayor made the declaration in 2004.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.