On December 11, 1978, Jimmy Burke, an Irish American gangster who was part of the Lucchese crime family in New York City got permission from the Gambino crime family (who controlled most of JFK airport) to carry out a heist. That morning, before the sun came up, gunmen from both families entered building 261 and made off with $6 million. It was much more money than anyone expected, though, and led to a lot of infighting after the robbery.
The Great Train Robbery
In August 1963, Bruce Reynolds and his gang boarded a train at Bridego Railway Bridge in Buckinghamshire, England, and made off with £2.6 million or the equivalent of £50 million today. Although it was an enormous lump of cash, and most of the robbers fled the country, their luck eventually ran dry and they were all caught.
Dunbar Armored Facility Robbery
The largest cash robbery to ever take place in the United States, this inside job was orchestrated by Allen Pace, one of the employees, on September 12, 1997 at the Dunbar Armored car facility in Los Angeles, California. The thieves made of with about $18 million. They were eventually caught and Allen received 20 years in prison.
Drumlanrig Castle Robbery
On August 27, 2003, four men acting as tourists stole a Leonardo da Vinci masterpiece, Madonna of the Yarnwinder, from the Drumlanrig Castle in Scotland using nothing more than an axe. Valued at around $40 million, it was recovered not long ago.
Northern Bank Robbery
Smart planning, some hostage-taking, and a lot of guts were needed in order to pull off this heist in Belfast, Ireland, that amounted to over $50 million. The night before the crime, two officials of the Northern Bank were visited by the robbers acting as policemen who then proceeded to hold both of their families hostage. The officials obviously gave the thieves the access they wanted. The case still remains unsolved.