A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

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

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Why walk on this historical site when you can zoom down instead?

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A remote island holds what claims to be Scotland's smallest cinema.

A serene garden path lined with 36 haiku stamped into clay stones.

A reproduction of earth's many biomes.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The highest bridge in America was built for an almost unnervingly small amount of money.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Along a busy beachfront strip you may hear Frank Sinatra singing from one boardwalk home.

A whimsical village of unique treehouses resides in a Washington forest.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

At the United Kingdom's only residential library you can sleep among the books.

A school-themed restaurant where gastronomy is the core curriculum.