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

The last of Amsterdam's original sea level markers remaining in place.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

This cheese shop also houses a museum devoted to Dutch dairy.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

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

Where royalty waits in the height of luxury.

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

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

The cutest way to stay safe in traffic.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Four giant movable street lights decorate this modern Rotterdam square.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

The site where two doves fell in love.

This 18th-century sundial was designed to calculate the date of Easter each year.

This facility has manufactured stunning tapestries for France's royalty ever since the 17th century.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

What looks like a normal building is really a hollow facade hiding a subway vent.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

How did a French journalist’s grave become the sexiest statue in the cemetery?