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

A sprawling maze of used books piled from floor to ceiling.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

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

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A wooden theatre that remains the heart of a charming Victorian-era New Jersey enclave.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

This peaceful gem in upstate New York was chosen as the future home of the 14th Dalai Lama's Library and Museum.

A trompe-l'oeil statue honoring the first guide dog in North America.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Built in 1821 using rooms from another estate, the Phillips House is the only historic home on scenic Chestnut Street open to the public.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

The remains of Crystal Palace Great Exhibition of 1851.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.