Recently Caterpillar conducted a tour of their proving grounds in Arizona. Here are some photographs of it. The tour was sponsored by the United Way
above is a massive American flag. It's being held up by a Caterpillar vehicle
I thought this was pretty cool usage as archways
I have been there as well. They have the big 797s up there. This was research for one of my design projects the Caterpillar Visitor Center in Peoria Illinois. We had to do a few photoshoots there for big murals in the visitor center https://www.caterpillar.com/en/company/visitors-center.html
I've never been there, but that sounds like a great experience. Nice!