A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

This giant shopping mall still holds signs of its automotive past.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

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

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

The world's only museum devoted to the wonders of fluorescence.

A unique collection of gilded age mechanical pianos.

A floating cat sanctuary on an Amsterdam canal.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

This unattributed sculpture in Amsterdam is hiding in plain sight.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A public urinal so pretty, it was declared a national monument.

The history and future of cannabis.

Amsterdam's former hotspot for public executions and dissections.

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

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

A beautifully eclectic mix of architectural styles.

Cat art as far as the eye can see.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.