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

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.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

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

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

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

Petting this mysterious iron monkey supposedly brings good luck.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

A once-magnificent collegiate church is falling into ruin.

A wonderfully kitsch bookstore the size of a supermarket.

Housing the groundbreaking maps and globes of Gerard Mercator.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

This modern arts center is built around a gem of late-Baroque architecture.

The United States Capitol's former columns still stand.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

A fantastical bed and breakfast with magically unique rooms.

Most prolific publishing house in the 1600s open to the public.

Because sometimes you need to make a batch of frites even when the stores are all closed.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.