Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Budapest's Communist-era statues, banished to the suburbs.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Odd stone and concrete monuments in the "Poet of the Sierras" eclectic folly garden.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A 1920s speakeasy that had rum runners racing up and down the shores of California.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

The largest permanent Monopoly board makes one of the longest games even bigger.

This giant shopping mall still holds signs of its automotive past.

A giant chess set, minus the psychedelic drug trip.