A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

Avant garde house of Pierre Cardin on the Cote d’Azur.

A true Valhalla for cactus and succulent lovers.

A miniature city, once ruled by the Queen of the Netherlands.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

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

A tiny house showcases the busy life of a local gnome.

Atop this former dutch railway office sits an interstellar work of art.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

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

The place where houses are born.

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.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

Colorful and chaotic stacked hotel in North Holland.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This subterranean studio is filled with fascinating kinetic art.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

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

A beautifully eclectic mix of architectural styles.

Amsterdam's former hotspot for public executions and dissections.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

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

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