The French built Hoa Lo Prison in the 1880s to incarcerate Vietnamese political prisoners and later the Vietnamese used it to hold American POWs. (The POWs jokingly called it the Hanoi Hilton, not to be confused with the current-day Hilton Hanoi Opera hotel). The prison was largely knocked down in the 1990s, but parts of it were kept and transformed into a museum, and exhibits include Senator John McCain’s parachute and flight suit, from when he was shot down in 1967. Unsurprisingly for a building with such a history, some displays are slightly grisly—such as recreations of rooms showing prisoners with their legs in stockade-like shackles, and the guillotine used by the French.
Photo by href="https://www.flickr.com/photos/knittymarie/">Marie/Flickr.