The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

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

An undulating wicker beast looms peacefully atop a sand dune in Belgium.

You would never come across this tiny green oasis if you didn't know it existed.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

The first green space constructed on an elevated viaduct.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

A surrealist timepiece by the artist of melting clocks.

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

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

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

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

The history and future of cannabis.

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

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Cat art as far as the eye can see.

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

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

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Olfactory delights in San Francisco's Botanical Gardens.