D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

The national park was once a plantation estate.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The site of the climactic scene from the classic horror film is now a historic landmark.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

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

Most-visited and most-photographed slot canyon in the American Southwest.

Tucked in the back of this amazing antique store is an important piece of medical history.

An exquisite tunnel of cascading flowers.

A magical place that lets you play in and explore the world of Studio Ghibli.

On Japan's Tashirojima Island, cats are king.

A psychedelic labyrinth on the San Francisco bay.

World's largest collection of serial killer artwork and other macabre exhibits.

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

A terrific purveyor of natural history objects and curios.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

America's first serial killer rests in anonymity.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.