A set of seven houses, each built in a style that represents a European country.

The former headquarters of history's oldest megacorporation.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

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.

Amsterdam's former hotspot for public executions and dissections.

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

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

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.

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

A floating cat sanctuary on an Amsterdam canal.

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

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The celebrated eyesore created by starry-eyed sweethearts.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

Folklore and history carved into Brittany's coast.

This emotive sculpture was originally created for the 1878 World's Fair.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

His "Lionheart" is entombed separately from the rest of his body.