This shallow cave got its name from copious amount of human bones found inside.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This small, nautical gift shop is home to a 500-pound behemoth.

The plants form a living library and laboratory for researchers and students at Michigan State University.

This experiment in the lifespan of seeds will take a century before it is complete.

Enjoy dishes that founding fathers once ate at this Colonial Williamsburg pub.

Dine like an American revolutionary at Colonial Williamsburg.

The location where the American Revolution ended.

A sculpture made from recycled materials and hand-blown glass dedicated to transportation and transformation.

Get up close and personal at this Fresnel Lens.

A lightship turned museum, outfitted with artifacts from the vessel's past as part of the U.S. Lighthouse Service.

An 83-foot tall granite obelisk honors the legacy of Dr. King in the heart of Norfolk's Black community.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

This old-fashioned carhop restaurant gave the world the waffle cone.

Be(w)ar(e) the moat around this historic Czech castle.

This renaissance château was home to an infamous witch hunter who sent a hundred suspected witches to their deaths.

Tiny communists hammer away on the Olomouc Astronomical Clock.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Instead of sermons, this church became home to millions of books.

Europe's second largest ossuary wasn't discovered until 2001.

A cheeky architectural easter egg.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.