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

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Miniature art that tells an enormous story.

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

The narrowest house in America is seven feet of pure spite.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.