The legendary giant's severed hand sits on Antwerp's popular shopping street.

Housing the groundbreaking maps and globes of Gerard Mercator.

A once-magnificent collegiate church is falling into ruin.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Once used to calculate the various levels around the country.

A monument at Alicante Marina honors a little-known hero of the Spanish Civil War.

This interactive museum highlights the history and philosophy of one of the world's most difficult sailing races.

This 15th-century aqueduct with distinctive pointed arches was used for irrigation in the Vinalopó valley.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

Crossing a suspension bridge above a forest is the only way to reach this 12th-century monastery.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

Drink among marionettes at this pub inside a historic puppet theater.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This collection of solar timekeepers includes the world's first digital sundial.

The Belgian library displays burned books that were salvaged from the fires of both world wars.