Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Where America's first doomsday cult awaited the end of the world.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

The oldest surviving presidential residence in the United States.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

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

The 10-foot-tall vegetables belong to Michigan’s first food rescue program.

A painted-over wall in Detroit originally built to segregate a black community from an adjacent white development.

Opened in 1947, this is the oldest continuously-operating drive-in theater in New York.

The final resting place of Harriet Tubman and other famous historical figures.

Possibly the smallest church in the world floats in the middle of a pond.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

This site commemorates the former inn and restaurant where the chocolate chip cookie was first crafted.

Museum dedicated to awful artwork.

Impossibly life-like natural history models created out of glass by a father and son.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

This historic patch of real estate offers a glimpse of colonial Boston.