This oceanfront 1920s house museum offers visitors historic art and rare plants across five distinct ecosystems.

More than 20,000 butterflies can be seen at this spectacular park and research center.

An outlandish shoe shaped house built by an eccentric millionaire.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

This Civil War monument was designed by an eccentric architect and Gettysburg veteran.

A sprawling maze of used books piled from floor to ceiling.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

A battleship’s mast sits atop a turret-like memorial, commemorating those who lost their lives in one of the precipitating events of the Spanish-American War.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A small cave with a larger-than-life legend.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The magic's in the hole!

Climb inside an iron crystal magnified 165 billion times its normal size.

A series of markers along one side of an Amsterdam canal memorialize the Jewish residents from the other side who died in the Holocaust.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The yawning maw of this pagan visage is said to bite off the hands of liars.

An abandoned masterpiece of Soviet Brutalist architecture.

The world’s first penitentiary, meant to be humane, drove men insane.

Home to items never before seen by the public.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.