The robbery of the Banco Central in 2005 in Fortaleza, Brazil is considered to be the biggest one in history. A small gang constructed a 250 feet tunnel which led to the bank’s strong room, using a neighboring landscaping business as a cover. The tunnel that took 3 months to dig had a lighting as well as an air condioning system. The gang managed to get it and steal $71.6 million ( or apporiximately 160 million in Brazilian reals) . Only 8 of the 25 people involved were arrested and Luis Fernando Ribeiro, considered to be the mastermind, was killed in a kidnapping accident. Arrests and recovery of the money are still on going.