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

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The land is home to swimming ponies and a legendary 18th-century treasure.

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

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Paths are maintained, but trees have taken over plots.

At 207 feet, one of the world's longest continuous escalators.

The "lovely red Vega" of the legendary record-settling pilot.

Home to items never before seen by the public.

Haven for steampunks.

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

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.