Look into the hidden world of one of Russia's most impenetrable and remote institutions - a maximum security prison exclusively for murderers.

Operating since the late 18th century, Butyrka prison of Russia has struggled with issues like poor sanitation, lack of medical care, and insufficient food supply. The prison is notoriously known ...

Russian prisons are notoriously tough, but there's one that's even harder than the rest. Called Black Dolphin, this high security prison on the Kazakhstan border houses the country's most brutal ...

A man from southern Russia’s Krasnodar region has been sentenced to 15 years in prison for allegedly passing important ...