Woolaroc has a Colt collection that will make your knees week. Anyone interested in 1911s can see most of the prototype models that lead up to the 1911 as we know it today. The Civil War era Colt revolver collection is amazing as well. It is also known as one of the few places in the US that has an example of every Paterson revolver variant made. It's quite impressive.
It is truly a humbling experience for someone that thinks they have a Colt collection.