A shrine to the royal lord of all cacti.

The largest underground pedestrian tunnel system in the U.S. mostly caters to the people working in the offices above, but provides a great, air-conditioned way to traverse the city.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

Once seen as a bit of an eyesore, this sculpture has become a staple of downtown Houston.

A park filled with vibrant mosaics created by more than 300 folk artists.

One man's homage to the orange as realized through a long-term folk art labor of love.

A little bit Wonkatania, a little bit pink elephant.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

These unique markers designate the route American forces took during the Liberation of France.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

One of the oldest and largest wooden churches in France was very evidently constructed by shipbuilders.

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

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

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

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

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

A suspended footbridge allows for traversing this gorge carved through the French Alps.

A fortified palace in the shape of a ship on the Thiou river.

These ramparts, once lined with towers, were constructed in defense of Beaune.

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

This bridge was constructed from the rubble of the infamous Bastille.

One of Jeff Koons’s largest sculptures and his first commemorative work.