An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Go inside to really appreciate this 500-year-old technological masterpiece.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A Nesting Doll of Churches.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

2300-year-old Roman road connecting the empire.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

The ancient tomb acts as a calendar that keeps perfect time.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The world's largest piece of copyrighted artwork.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

Ice cream stand, snack bar, and time capsule of milk conveyance.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.