A commemoration of over 150 of St. Louis's favorite sons and daughters.

The golden age of flight captured in a downtown airport.

The modest, restored home of the legendary ragtime musician John William "Blind" Boone.

From a canyon-like gorge, more than 20 million gallons of water emerge every day, while a smaller spring drips down, creating the illusion of an endless, gentle waterfall.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

This unconventional used book store was once in the news for the surprising act of burning books.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A Jenga-style cylindrical tower of books that appears to go on forever.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.