The land is home to swimming ponies and a legendary 18th-century treasure.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

The hippo that stands on this university campus was once a drunken flea market purchase.

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

The oldest continuously operating fish market in the United States.

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

A rotating cast of guys and dolls in front of a Washington, D.C. building.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

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

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A historic arena where the Beatles played their first concert in the U.S.

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

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

Family-run for more than a century, this pizzeria makes a unique mustard pie.

Ride the subways of yesteryear.

The first museum in the United States dedicated entirely to posters.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

The impeccably spiced roast pork buns at this bakery are worth the wait.

Dine on dumplings at the oldest dim sum restaurant in New York.