Our chilling photographic journeys to abandoned locations around the world continue with these images by urban explorer Richard Nickel, who has taken his camera into many dark and forgotten corners of New England and beyond.
His journeys reveal sites of great tragedy, terror and surreal beauty...
...most notably the grounds of this former State Lunatic Asylum in Worcester, Massachusetts.
While each of the photos could tell a thousand sad stories, it's these hospital images that call up the most vivid nightmares.
Nickel's excellent photos are collected at his blog The Kingston Lounge.
Each collection comes with extensive historic background on the locations he's visited.
There's a lot of material compiled there, so be prepared to spend a long time within these eerie rooms, corridors and passageways...