This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

Perhaps the most spectacular grotto along the Algarve coastline.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The largest permanent Monopoly board makes one of the longest games even bigger.

The little tuxedo cat survived the trip, then languished in obscurity.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

Sculpture of a legendary French dragon.

1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

This army of concretions is an unexplained geological phenomenon unlike anything else in the world.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

To the famous surrealist artist, liberty required two torches held high.

France's high-tech, future-themed amusement park.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

A French library that makes sure its love of books is writ large... giant in fact.

The world's tallest bridge is also possibly the most elegant.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.