New York City's smallest piece of private property.

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

A semi-scholarly approach to sex.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A toxic ghost town sitting atop a massive coal fire.

Try not to get slimed in Tribeca.

New York's oldest magic store.

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

Tucked in the back of this amazing antique store is an important piece of medical history.

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

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Granting the right of way to ships over surface traffic since 1917.

A frozen relic of Seattle's hydroelectric boom is now a teaching facility for future engineers.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

Artistic Oasis in Industrial Ballard.

This tiny home built on revenge appears to be scarcely wider than a Volkswagen.

Offering an enjoyable alternative to the standard hellacious post office trip.

The spur that wouldn’t die.

This Cold War siren is one off the last of its kind still standing with its immensely powerful original horn.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

What's that on the side of that building? Va Va Voom, it's Bettie!

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A nondescript Seattle restaurant inherited a piece of European history.