A little-known park with unusual, half-ruined structures and a mystical energy.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A spectacular cave and a beguiling lake.

The hallucinogenic center of the ancient world.

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

A unique work of automotive art calls this shopping center home.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

This vast collection of smoking pipes from across the world spans centuries.

Europe's official "zero-level," the equator of elevation.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

This subterranean studio is filled with fascinating kinetic art.

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

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

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

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

The history and future of cannabis.

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

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

A floating cat sanctuary on an Amsterdam canal.

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

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.

The final resting place of the "father of special effects."