World War II bunker still standing on the New Jersey beach.

A well-preserved example of an early industrial operation in the northeastern United States.

Mysterious rocks that ring musically when struck.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

A much-maligned monument to teetotalism.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

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

A street in front of NASA's D.C. headquarters has been named in honor of the Black women who were essential to early spaceflight.

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Home to items never before seen by the public.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

Dr Barnes' $25 billion private collection of art and arboretum.

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

This colonial mansion has been home to a staggering number of American historic figures.

An aptly-named street near the birthplace of the modern LGBT rights movement.

The first piece of public art dedicated to LGBT rights.

A unique sculpture park that specializes in the huge and bizarre.

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

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.

Inside Crosswicks Creek Park resides an estate chronicling 200 years of history.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.