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

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

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.

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

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

Colorful and chaotic stacked hotel in North Holland.

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

A small Portuguese cottage formed between boulders in the countryside.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Peek through a transparent pyramid and drink in the mountain made of books.

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

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.