Wonderland replication in progress by one persistent man.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A monument to the man who almost killed Hitler.

One of the world's heaviest musical instruments towers within a popular urban park.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

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

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

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

This Croatian computer club features such gaming relics as the infamous Virtual Boy and an 8-bit Pacman machine.

The sign at the garden gate reads: “These Plants Can Kill.”

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

A museum and gardens with unusual plants and a history of progressive programming for the blind.

Huge winged monument in the United Kingdom.

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

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

Old Danish castle immortalized in Shakespeare's Hamlet.

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

England's "pier at the end of the universe" unites astronomy and contemporary architecture.