These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The massive machine creates cracking displays of indoor lightning.

The 10,000 Torii shrine.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The unbelievably opulent home built for an infamous newspaperman.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The world's largest piece of copyrighted artwork.

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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