Panama Canal
Colombia, France, and later the United States controlled the territory surrounding the canal during construction. The US continued to control the canal and surrounding Panama Canal Zone until the 1977 Torrijos–Carter Treaties provided for handover to Panama. After a period of joint American–Panamanian control, in 1999, the canal was taken over by the Panamanian government. It is now managed and operated by the government-owned Panama Canal Authority.
Panama Canal Zone
In 2008, during a minor controversy over whether Canal Zone–born John McCain, born in the Zone in 1936, was legally eligible for the presidency, the US Senate passed a non-binding resolution that McCain was a "natural born Citizen" of the United States.