Alcatraz, once known as the most secure prison in America, became the scene of a daring escape in 1962 when Frank Morris and brothers Clarence and John Anglin used sharpened spoons, fake heads, and a raft made of raincoats to flee. Although their bodies were never found, many believe they survived the treacherous waters of San Francisco Bay.

Over the decades, new clues have continued to surface: a mysterious postcard, alleged sightings in Brazil, and even a computer model showing the escape could have succeeded if timed precisely. Despite this, the FBI closed its case in 1979, presuming the men had died, though the US Marshals Service still keeps the file open.Visitors this month tour the prison cells on Alcatraz Island. Jed Jacobsohn/AP

Today, Alcatraz is a museum visited by over a million tourists a year. However, former President Donald Trump has floated the idea of reopening it as a working prison to symbolize law and order, a proposal critics argue would erase an important piece of history.