It can be amazing what one person can do. Especially focusing over a period of decades. That's an art in itself. Looks almost like it was built by one person

It can be amazing what one person can do. Especially focusing over a period of decades. That's an art in itself. Looks almost like it was built by one person's idea who then did all the work except that which physically required a helping hand. Some of these things fit into a shoebox, some of them don't.