This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

An ancient neolithic tomb that only sees the sun twice a year.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

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