A modernist landscape of water and sci-fi concrete.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A taste of Middle Earth, in the middle of the Bayou City.

A high-octane shrine to the greatest Texans who ever lived.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

This 18th-century sundial was designed to calculate the date of Easter each year.

The video game-themed street art first popped up in the French city.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

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

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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

The narrowest street in Paris.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Paris' linguistic guide to the international language of, yes, love.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.