This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

Site of the first pathological and bacteriological research facility in the United States.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The only remaining historic maritime signal station in the United States.

Explore the dark underground corridors of this graffiti-covered former military fortification.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

An enormous park-like oasis, full of famous Chicagoans’ graves.

No one knows how many bodies are in this vault in a Chicago public park.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A mural of a boy making a phone call connects a southern Maine community to a town in Iraq.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

Built for television, this statue now serves as an unlikely memorial to a fireman who died on 9/11.

Its unique collection details the history of the state's svelte railroads.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

Trinkets and toys lovingly handmade by maximum security prisoners.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.