D Block. Disciplinary unit virtually another prison within Alcatraz. From the collections of the Golden Gate National Recreation Area

Alcatraz Island Penitentiary. An Alcatraz Inmate Prepares to Enter His Cell on Broadway. The Golden Gate National Recreation Area

Benenden. National Sanatorium. Recreation Room. Everett and Ashdown

Nairn. Cawdor Castle. Gateway. M. and L. National Series. 1955

Walsingham. Abbey Gateway. M. and L. National Series

LLL8. North Front. Lilleshall National Recreation Centre. Friths Series

Lake Powell. Glen Canyon National Recreation Area. Wahweap Marina. Mountain West Prints. Great Mountain West. 1995. Charles D. Thomas

The Green River. Flaming Gorge National Recreation Area. George Mc. Company. Plastichrome. Colourpicture. U. S. Forest Service