This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A grassy pyramid named after a French battle.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

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

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

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

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

Copenhagen's "other" little mermaid marks the historic location of past sea maid sightings.

Hans Christian Andersen for the postmodern world.

This plaque marks the former home of one of the first women physicians in the Netherlands.

This unattributed sculpture in Amsterdam is hiding in plain sight.

A solid steel plane designed to catch fire over and over again.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

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

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

The last water-powered mill in Oregon is open daily for free tours and has a surprising history.

Home of Howard Hughes' Spruce Goose.

The wooden airship was the largest flying boat ever built.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

The arch that celebrated the completion of the Lincoln and Victory highways.

This sci-fi gazebo located in a Washington power town is made from old bits of industrial electrical equipment.

Buried beneath an unassuming Gotland farm was the largest collection of Viking silver, mostly of Islamic origin.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.