![View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy](https://c8.alamy.com/comp/EPRP5Y/view-of-the-basement-prison-cells-at-the-former-kgb-or-cheka-headquarters-EPRP5Y.jpg)
View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy
![The KGB prison in Vilnius. Staircase and access to the basement cells Photograph by RicardMN Photography - Pixels The KGB prison in Vilnius. Staircase and access to the basement cells Photograph by RicardMN Photography - Pixels](https://images.fineartamerica.com/images/artworkimages/mediumlarge/3/the-kgb-prison-in-vilnius-staircase-and-access-to-the-basement-cells-ricardmn-photography.jpg)
The KGB prison in Vilnius. Staircase and access to the basement cells Photograph by RicardMN Photography - Pixels
![Prison cell in the basement, called U-Boot, submarine, former Stasi prison, Foto de Stock, Imagen Derechos Protegidos Pic. NVI-10021853 | agefotostock Prison cell in the basement, called U-Boot, submarine, former Stasi prison, Foto de Stock, Imagen Derechos Protegidos Pic. NVI-10021853 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/909baae8ed5e4dcf7c4a058450cd85ac/nvi-10021853.jpg)
Prison cell in the basement, called U-Boot, submarine, former Stasi prison, Foto de Stock, Imagen Derechos Protegidos Pic. NVI-10021853 | agefotostock
![View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy](https://c8.alamy.com/comp/EPRM2K/view-of-the-basement-prison-cells-at-the-former-kgb-or-cheka-headquarters-EPRM2K.jpg)
View of the basement prison cells at the former KGB, or 'Cheka' headquarters known by locals as the Corner House in Riga capital of Republic of Latvia Stock Photo - Alamy
![File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 02 (27252428603) (2).jpg - Wikimedia Commons File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 02 (27252428603) (2).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Prison_Cell_in_Basement_of_Former_KGB_Headquarters_-_Museum_of_Genocide_Victims_-_Vilnius_-_Lithuania_-_02_%2827252428603%29_%282%29.jpg/640px-Prison_Cell_in_Basement_of_Former_KGB_Headquarters_-_Museum_of_Genocide_Victims_-_Vilnius_-_Lithuania_-_02_%2827252428603%29_%282%29.jpg)
File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 02 (27252428603) (2).jpg - Wikimedia Commons
![File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 01 (27788509401) (2).jpg - Wikimedia Commons File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 01 (27788509401) (2).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/9d/Prison_Cell_in_Basement_of_Former_KGB_Headquarters_-_Museum_of_Genocide_Victims_-_Vilnius_-_Lithuania_-_01_%2827788509401%29_%282%29.jpg)
File:Prison Cell in Basement of Former KGB Headquarters - Museum of Genocide Victims - Vilnius - Lithuania - 01 (27788509401) (2).jpg - Wikimedia Commons
![Basement Solitary Cells, built in 1850's - Picture of Alcatraz Cruises, LLC, San Francisco - Tripadvisor Basement Solitary Cells, built in 1850's - Picture of Alcatraz Cruises, LLC, San Francisco - Tripadvisor](https://media-cdn.tripadvisor.com/media/photo-m/1280/15/b0/f1/20/basement-solitary-cells.jpg)
Basement Solitary Cells, built in 1850's - Picture of Alcatraz Cruises, LLC, San Francisco - Tripadvisor
![A Basement Prison Cell with Sun Rays Penetrating Behind Closed Bars Stock Image - Image of rustic, school: 143183509 A Basement Prison Cell with Sun Rays Penetrating Behind Closed Bars Stock Image - Image of rustic, school: 143183509](https://thumbs.dreamstime.com/b/basement-prison-cell-sun-rays-penetrating-behind-closed-bars-dark-mysterious-143183509.jpg)