In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

The last street in Pittsburgh that's paved with wood.

The resting place of a Civil War celebrity's amputated limb.

These massive concrete balls were used to mine gold in Virginia.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

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

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

There’s a hidden military meme engraved on the World War II Memorial.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

This magnificent Cincinnati graveyard is also a popular public park.

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

A piece of baseball history is preserved in a Pittsburgh parking lot.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

These markers are used to document elevation changes around the famed dam.