M60. National Museum of Military Vehicles.

The M60 was the great U.S. tank of the Cold War, and continues to be a great tank to this day.

Effectively an improved variant of the M48, so much so that in some armies it would be regarded as a variant of the prior tank, the M60 took all of the improvements to the M26 line of tanks over the decades and more or less perfected them.  Indeed, some of the improvements, such as the 105mm gun, were retrofitted to the prior M48.

M60s remain in use around the world in upgraded versions.