All that remains of the medieval palace of the famous "Black Prince."

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

Old Tudor home moved on thick iron rails to a new spot.

Hidden in plain sight, this creepy sculpture watches from above.

This coffee shop lies hidden beneath a historic church.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Art Deco stylings conceal the true nature of this bridge.

Frank Lloyd Wright died a year before construction on his largest public project even began.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

Concrete strongholds stand guard over the Golden Gate.

'Cause the fence start shaking, the earth was quaking.

The southernmost outpost of the Russian Empire in colonial America.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

The record holder for the world’s largest peach.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

The author's beautiful and historic home is also a fully functioning goat farm.