Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Designed as a reminder of one of the darkest moments in Austrian history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The second oldest continuously operating bar in Louisiana.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

A clear blue swimming hole with hidden caves, still unexplored.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

The final resting place of a space program monolith.