Survival capsules find a second life as a unique hotel.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

A miniature city, once ruled by the Queen of the Netherlands.

A grassy pyramid named after a French battle.

This miniature take on the Kremlin is one Dutch man's retirement project.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

A true Valhalla for cactus and succulent lovers.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

An abandoned swimming pool decays on the outskirts of Berlin.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A fabulously bizarre surrealist sculpture by the late artist Leonora Carrington.

This covert museum showcases booties worn by a rescue dog and slippers owned by Queen Elizabeth II.

A grand entrance to one of the world's smallest Chinatowns.

Worm salt and other local ingredients are on the menu at this cult favorite ice cream shop.