A tribute to a unique bike race that takes place every year.

At this airport "microcinema," you can catch a film before you catch a flight.

This theatre and its amazing marquee harken back to the Golden Age of Hollywood.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

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

This unique Seattle structure was designed to be the greenest commercial building on the planet.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Macabre astrological automaton clock dating to the late 1400s.

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

A mixture of strange symbols, ciphers, words and cryptograms carved in 1876 remain unsolved to this day.

This legendary urban waterfall creates a dazzling display of rainbows.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

The only museum with its curator—and her pets—buried inside.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.