Local legend says the remains of Father Christmas lie within the medieval grounds.

A working miniature city designed to teach kids about safety and presumably city planning.

Steepest flood safety railway in the entire world.

The miraculous hydrant that saved the Mission District in 1906.

A marvel of Byzantine engineering under the streets of Istanbul.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

This piece of Australian modern art is part joke and part history.

A mocking tribute to the past and modern leadership of Prague.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

A celebrity from the late Cretaceous period.

Quite simply the largest tree in the world (by volume).

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

The haunting ruins of Jack London's dream house.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

A ruined hotel with an unlucky history and an eerie present.

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A man-made island in scenic San Francisco Bay.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

The remains of a ruined mansion memorialize the 1906 earthquake.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.