Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

No one knows who painted this mysterious mural in a Penn State basement.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

The first of Lancaster's "rural cemeteries."

The oldest farmer's market in America is so ancient it was approved by the King of England.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

Only hotel where you can legally launder money.

The restored and active Victorian-era final resting place of San Francisco.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Tiki luxury on Nob Hill.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

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

A huge musical instrument played by the ocean.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

The monumental steeple on Amherst College's campus has no church attached to it.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

The mighty room where the poet spent most of her life is available to rent for an hour or two.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."