The only diamond mine in the world where you can keep what you find.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Trinkets and toys lovingly handmade by maximum security prisoners.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

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

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

An elaborate, hidden model train in the Needham Town Forest.

The oldest surviving wood-frame building in North America is still in the family.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

The Atlantis of Cape Cod reemerges during the lowest of tides.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

The 14th-century ruins are said to contain healing powers.

Half-size replica of the Taj Mahal.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Plot your trip through the city on the sidewalk.

The 28-foot granite map plots the locations of 40 theaters in New York City.