Things to Do
Hoa Lo Prison Museum
Built by French colonial authorities to hold Vietnamese political prisoners and later used to detain American POWs during the Vietnam War, Hoa Lo is one of Hanoi's most historically significant — and most sobering — sights.
Two very different chapters of history
Hoa Lo's history splits into two distinct, heavy periods. Under French colonial rule from 1896, it held Vietnamese revolutionaries and political prisoners in conditions the museum documents in detail, including exhibits on the independence movement. Later, during the Vietnam War, it was used by North Vietnam to detain captured American pilots and servicemen, who nicknamed it the "Hanoi Hilton" — including future US Senator John McCain, whose flight suit is displayed among the exhibits.
What to expect
Much of the original prison complex was demolished in the 1990s to make way for a hotel and office development, but a preserved section remains as the museum, including original cells, guillotine equipment from the French colonial period, and displays covering both eras of the prison's use. It's a genuinely affecting visit — go in expecting a serious, sometimes graphic account of imprisonment and wartime history, not a casual sightseeing stop.
Practical notes
Signage is generally well translated into English. Allow at least an hour to read through the exhibits properly; this isn't a site to rush through in ten minutes.