Millions of numbers carved in glass represent the tattoos forced upon victims.

Narrowest house in Boston.

A beautiful Victorian-era cemetery, complete with a miniature village.

Two thousand artifacts from around the world collected by one woman who loved to travel.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

An enormous, inside-out glass globe built in 1935.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

The only zoo where you can buy animals that won't need feeding.

A mysterious inscription may hold a clue about the "Lost Colony" of Roanoke.

An unfinished rail tunnel that has since been used to house cheese and bats.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

Where school buses go to die and be reborn as whimsical works of art.

A wonderland of folk art including the World’s Largest Grit. 

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

America's oldest archaeological site or a muddled case of wishful thinking.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

Nature and religion are reunited at this unconventional church in the forest.

The dress young Pierce wore prior to his breeching ceremony in the early 1800s is now on display for all to see.

Murder scene memorialized in perpetuity by grisly obelisk.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

One New Hampshire alleyway has become home to a public gallery of feline art.