The National Trust for Historic Preservation is the only private, nonprofit organization chartered by Congress to encourage public participation in the preservation of sites, buildings, and objects significant in American History.

Preservation Online

Official project website for the memorialization of Northampton State Hospital, in Northampton, Massachusetts, by Anna Schuleit. Includes history, maps, description, and pictures.

1856.org

"This is a work in progress. It will include as many state institutions and private mental health facilities as we can come across (demolished, abandoned, and functional)."

Legacy of False Hopes and Fading Dreams

Visit gray photography, an online portfolio documentating architectural environments. View photographs of Historic Danvers State Hospital and learn about its history. More well researched history and a great movie is at Metropolitan State Hospital.com

Dijital Photography: New England and Beyond is a variety of subjects but also has an extensive body of asylum related photography.

Old buildings, abandoned hospitals, industrial palaces overgrown with plants and trees, the remaining walls
decorated with graffiti, smashed windows, rain dripping through the roof... These places have become hard to find, difficult (or illegal) to access, dangerous to explore...

Abandoned-Places.com

Lets go up to the state tonight. Don't worry about it, the front door is wide open , Hell well even park in front of it.

Abandoned Buildings of the Northeast

Tug boat graveyard in NYC

North Star Gallery

Eastern State Penitentiary

North Star Gallery

Infiltration offers a mix of the practice and theory of urban exploration in areas not designed for public usage.
This site is the online companion of the paper zine about going places you're not supposed to go.

Infiltration

Jinx is the magazine of Worldwide Urban Adventure.

Jinx Magazine

Urban Exploration Forum in Canada

UER

This ring contains sites focussing on the art of urban exploration: touring storm drains, abandoned buildings,
rooftops, transit tunnels, college steam tunnels and other off-limits locations.