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

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

A haunting tribute to pioneering photographer Clover Adams.

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

The house where John Wilkes Booth conspired with his co-conspirators.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

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

Largest Roman Catholic church in North America.

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

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

This grand gothic brewery has been pumping out suds for over a hundred years.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

Cherokee alphabet, proof of ancient North American Jews, or just a hoax?

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.