This popular pilgrimage site offers a hole filled with holy healing dirt.

Museum celebrating the achievements of the Soviet space program.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

The home, museum, and death site of Kodak's influential founder.

Three buildings constructed of over 25,000 multicolored glass bottles.

This small-town pizzeria won the Hollywood lottery.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

Mysterious stone tower featured in many alternative histories of the New World.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

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

A layered tribute to the work of mosaicist Isaiah Zagar.

World's first "penitentiary," meant to be humane, drove men insane.

The modern birthplace of Irish freedom.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A unique geological area spiked with wind-carved rocks that resemble teepees.

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