This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

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

The attic of a four-century-old canal house hides a clandestine church.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Museum preserving torture methods from the past.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

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

Eighty million natural history specimens call this gargantuan museum home.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

An old Danish political institution where members of government can grab a drink off the record.

An "evil painter" included pointed symbols in this artwork to poke fun at members of the Danish Parliament.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

This sublime architectural marvel is a rare example of an expressionist church.

From buck blood to Theriak miracle tonic, this collection of Renaissance chemist's gear look's like a wizard's pantry.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

An old limestone mine transformed into a beautiful and unusual sculpture museum.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.