 Walls Unit of prison system, main entrance. Huntsville, Texas, June 29, 2008
 Model of Walls Unit in Prison Museum, with Main Building in the center, Infirmary to the left and Dining to the right. Huntsville, Texas, February 23, 2008
 Old Administration Building of Walls Unit Prison. Huntsville, Texas, March 23, 2008
 Memorial plaque of Texas Historical Commission in front of 32 feet high and 2-3 feet thick brick security wall (1942) surrounding Walls Unit of TDCJ prison system. Huntsville, Texas, June 29, 2008
 Huntsville Unit of Texas State Penitentiary "The Walls" (established 1849) at morning. A clock above the main entrance to the prison is a symbol of time which serves as a reminder to those inside. Huntsville, Texas, December 18, 2008
 Memorial plaque of Texas Historical Commission in front of Walls Unit of TDCJ prison system. Huntsville, Texas, December 29, 2011
 Old Administration Building of Walls Unit Prison. Huntsville, Texas, December 29, 2011
 Walls Unit prison. Huntsville, Texas, February 23, 2008
 Inmate money printed by Texas Prison System in Prison Museum. Huntsville, Texas, February 23, 2008
 "Merry Christmas to All" decoration on the 32 feet tall brick security wall surrounding "The Walls" prison (Huntsville TDCJ Unit), with a memorial historical plaque in foreground. Huntsville, Texas, December 18, 2008
 Christmas decoration on tall brick security walls of Huntsville prison "The Walls". Huntsville, Texas, December 20, 2009
 Walls Unit prison. Huntsville, Texas, December 29, 2011
 Huntsville Unit of Texas State Penitentiary, "The Walls" prison. Huntsville, Texas, December 20, 2009
 Model of Walls Unit of Texas State Penitentiary in Prison Museum. Huntsville, Texas, December 18, 2010
 Model of old prison rodeo arena in Prison Museum. Huntsville, Texas, February 23, 2008
 Exterior of Prison Museum styled as a prison. Huntsville, Texas, December 18, 2010
 Makeshift weapons in Prison Museum. Huntsville, Texas, February 23, 2008
 Ruins of Cuzzeri Building at 619 Main Street, at evening. Calvert, Texas, February 10, 2008
 Death penalty protests on exhibit in Prison Museum. Huntsville, Texas, February 23, 2008
 TDCJ Captain Joe Byrd (Peckerwood Hill) Prison Cemetery. Huntsville, Texas, February 21, 2008
 Huntsville Unit of Texas State Penitentiary "The Walls". Huntsville, Texas, October 31, 2009
 Texas Prison Rodeo exhibit in Prison Museum. Huntsville, Texas, December 18, 2010
 Paper items with handles made by prisoners from Christian counseling literature and used as dumbbells in Prison Museum. Huntsville, Texas, February 23, 2008
 Syringe used to administer sodium thiopental to sedate inmates during first stage of lethal injection in Prison Museum. Huntsville, Texas, February 23, 2008
 Old Sparky electric chair used for capital punishment of several hundred death row inmates in 1924-1964 in Prison Museum. Huntsville, Texas, February 23, 2008
 Cuzzeri Building at 619 Main Street, a corner of Hanna Street. Calvert, Texas, December 27, 2008
 Irrigation pipe system on a field near Road 50, view from CR 443 north from Independence. Texas, June 1, 2008
 Irrigation system on agricultural field near Road 50, view from CR 443 north from Independence. Texas, June 1, 2008
 Irrigation pipe system on a field near Road 50, view from CR 443 north from Independence. Texas, September 21, 2008
 Water sprinkling by irrigation system over an agricaltural field near Road 50, view from CR 443 north from Independence. Texas, July 12, 2008
 Accumulation of beetles on walls of old building in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, November 14, 2014
 Used electric chair in Prison Museum. Huntsville, Texas, December 18, 2010
 Recreation exhibit in Prison Museum. Huntsville, Texas, December 18, 2010
 Death row exhibit in Prison Museum. Huntsville, Texas, December 18, 2010
 Hutchings - Sealy Building (c. 1895) at a corner of Strand Avenue. Galveston, Texas, March 2, 2008
 Old Sparky electric chair in Prison Museum. Huntsville, Texas, December 18, 2010
 Inmate crafts items in Prison Museum. Huntsville, Texas, December 18, 2010
 Inmate crafts exhibit in Prison Museum. Huntsville, Texas, December 18, 2010
 Main University Building on Senate Square. Helsinki, Finland, July 18, 2015
 Perrin Building (built in 1877) at 330 Main Street. Lafayette IN, January 18, 1998.
 Jacques Adoue Building (1884) at 506 Main Street. Calvert, Texas, December 27, 2011
 Jacques Adoue Building (1884) at 506 Main Street. Calvert, Texas, December 25, 2009
 Trueheart-Adriance building (1882) at 210 Kempner Street in Strand District. Galveston, Texas, March 2, 2008
 Nafha Prison (Israeli top security prison, holds 200 Palestinians sentenced to life), view from a road to Eilat. North from Mitzpe Ramon, the Middle East, February 1, 2001
 Main building entrance facade of Museum of Islamic Art at evening. Doha, Qatar, January 30, 2010
 Main building of Forestry University in Lesnoy Park (Lesotekhnicheskiy Universitet). Saint Petersburg, Russia, July 30, 2017
 Ornamental vase in front of the main building in Lesnoy Park (Lesotekhnicheskiy Universitet). Saint Petersburg, Russia, July 30, 2017
 Downtown Lafayette. Carnahan-Ross-Kaplan Building at 622 Main Street (built in 1862) is to the left. Indiana, January 18, 1998.
 Ruins of Hancock Bank and another building at North Beach Boulevard, near Main Street. Bay Saint Louis, Mississippi, February 4, 2006
 Walls of Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Herbarium, library, and botany lab building near main entrance of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 29, 2009
 Hutchings - Sealy Building (c. 1895) at 2326-28 Strand Avenue, a corner of Mitchell Avenue. Galveston, Texas, March 2, 2008
 New Main Drive and Administration Building on campus of Texas A and M University. College Station, Texas, February 16, 2021
 New Main Drive and Administration Building on campus of Texas A and M University. College Station, Texas, November 25, 2017
 Cuzzeri Building at 619 Main Street, a corner of Hanna Street. Calvert, Texas, December 6, 2012
 Mitchell Physics Buildings under construction on campus of Texas A and M University, view from Chemical Engineering building. College Station, Texas, March 18, 2008
 New Main Road and Administration Building on campus of Texas A and M University at rain. College Station, Texas, December 30, 2009
 Cuzzeri Building (ca. 1880) at 619 Main Street, a corner of Hanna Street. Calvert, Texas, December 22, 2011
 Cuzzeri Building (ca. 1880) at 619 Main Street, a corner of Hanna Street. Calvert, Texas, December 13, 2009
 Cuzzeri Building (ca. 1880) at 619 Main Street, a corner of Hanna Street. Calvert, Texas, November 25, 2011
 Cuzzeri Building (ca. 1880) at 619 Main Street, a corner of Hanna Street. Calvert, Texas, December 22, 2010
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Near Main Street in downtown. Calvert, Texas, February 10, 2008
 Main Street in downtown. Calvert, Texas, February 10, 2008
 Tourist shops on Main Street. Calvert, Texas, February 10, 2008
 Old Mercury car near South Main Street. Anderson, Texas, January 26, 2008
 Corner of Preston and Main streets. Houston, Texas, January 21, 2008
 Main Street in downtown at rain. Houston, Texas, January 21, 2008
 Masonic Hall (McRary-Drury Building, Pierce Masonic Lodge No. 144) at 410 Main Street, a corner of East Mitchell Street. Calvert, Texas, December 22, 2011
 Masonic Hall (McRary-Drury Building, Pierce Masonic Lodge No. 144) at 410 Main Street, a corner of East Mitchell Street. Calvert, Texas, November 25, 2011
 Masonic Hall (McRary-Drury Building, Pierce Masonic Lodge No. 144) at 410 Main Street, a corner of East Mitchell Street. Calvert, Texas, December 27, 2011
 Masonic Hall (McRary-Drury Building, Pierce Masonic Lodge No. 144) at 410 Main Street, a corner of East Mitchell Street. Calvert, Texas, December 13, 2009
 Interior of Salazar s Garage at 717 Main Street. Calvert, Texas, January 19, 2008
 Mud Creek Pottery on South Main Street. Calvert, Texas, January 19, 2008
 Model of a train on Main Street in downtown Bryan. Texas, November 18, 2008
 Salazar s Garage at 717 Main Street at evening. Calvert, Texas, February 10, 2008
 Palace Theater on Main Street in downtown Bryan. Texas, November 18, 2008
 Vintage Edsel car near South Main Street. Anderson, Texas, January 26, 2008
 Confederate Memorial on South Main Street in downtown. Anderson, Texas, January 26, 2008
 Carnegie public library on Main Street in downtown. Bryan, Texas, October 9, 2008
 Queen movie theater on Main Street in downtown Bryan. Texas, November 18, 2008
 San Fernando Cathedral, view from West Main Plaza. San Antonio, Texas, February 9, 2008
 Queen movie theater on Main Street in downtown. Bryan, Texas, October 9, 2008
 Entrance of Queen movie theater on Main Street in downtown Bryan. Texas, November 18, 2008
 Islamic Da wah Center and trolley tracks on Main Street in downtown. Houston, Texas, January 21, 2008
 Vintage Edsel car and Courthouse on South Main Street in background. Anderson, Texas, January 26, 2008
 Baylor University Sciences Building. Waco, Texas, August 23, 2008
 Boletus mushroom on Four Notch Main Trail in Sam Houston National Forest. Huntsville, Texas, October 7, 2007
 Sculpture in front of Carnegie public library on Main Street in downtown Bryan. Texas, November 18, 2008
 Ruins of stone walls in Al Areesh. Northern Qatar, March 6, 2015
 Pedestrian tunnel of 1400 Smith Street Building. Houston, Texas, January 21, 2008
 Garage and and a corner of Continental Airlines Building from Howe Street. Houston, Texas, January 21, 2008
 Pine forest at south part of Caney Creek Loop Trail in Sam Houston Forest. Huntsville, Texas, March 15, 2008
 High rise building and Theatre District west from Chase Tower. Houston, Texas, January 21, 2008
 Floodlines on a window and walls of a house at 6510 Canal Boulevard. New Orleans, Louisiana, March 10, 2006
 Main Street north from Mitchell Street. Calvert, Texas, December 27, 2008
 Main Street near crossing with Preston Street. Houston, Texas, January 21, 2008
 Statue on Main Street, near Clay Street. Houston, Texas, January 27, 2008
|