Hoa Lo Prison - Nhà tù Hỏa Lò - was built by the French colonial administration in 1896 on the site of a village known for producing pottery and stoves, from which the name derives: hỏa lò means 'fiery furnace' or 'stove'. Originally designed to hold 450 prisoners, the complex at times held over 2,000, becoming a central site of Vietnamese revolutionary history as the French used it to incarcerate independence activists, including many future leaders of the Democratic Republic of Vietnam.
After 1954
After the French departure in 1954, the prison was used by North Vietnam, most notably during the Vietnam War when American pilots shot down over Hanoi were held there - a period during which the prison was nicknamed the 'Hanoi Hilton' by US prisoners of war.
What Remains Today
The original complex was largely demolished in the 1990s to make way for the Hanoi Towers development; the preserved section - the main entrance block and several cell buildings - now operates as a museum covering both phases of the prison's history.