Montage?

This is a fun thing to do. It's actually a week in Washington USA, where we attended a Photographic Convention some years ago and the components of this image are all about that and The Boss put the two prints together and photographed them this morning. It is about 30 inches long.
If this was a print on a wall you would see a different bit of it each time you passed and you build it by importing and sizing each pic separately.. 
There are apps that sorta do this but not to this level. 
I think it took ages....
T