More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Commemorating the spot where the famous scientist fed his pigeons.

The former hotel where Tesla invented the radio.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

An artist's cute bronze subway sculptures belie his violent artistic past.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A terrific purveyor of natural history objects and curios.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

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

The headquarters in Salem doubles as an occult art gallery.

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.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.