The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This free, take-a-book shop seems like a trick but isn't.

A museum dedicated to exhibiting remarkable outsider art.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Before Nixon, "watergate" meant canals.

A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.

Obscure Freemasons still live in D.C.’s largest private residence.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

The towering figures were created from the cemetery's fallen old-growth trees.

Go take a picture with the inventor of the daguerreotype photographic process.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

The most accurate timepiece in the world.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

When it opened during the final years of the embargo, all the drinks and cigars were free.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

People escaping slavery may have hidden inside a corpse vault.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.