George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

The world's oldest soul food restaurant is also one of its best.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

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

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

The United States Capitol's former columns still stand.

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

This one-room schoolhouse played a significant role in the education of Black children for almost 100 years.

The only public school for Black children in the region from 1895-1936.

Its diverse collection of computers and technology spans the ages.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

An astounding collection of medical specimens, including bits of President Lincoln.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.