Just north of Valentine, between Van Horn and Marfa on Hwy 90, there's a real scale Prada store. A beacon on the desert, it is a funky art installation, a "time release time capsule" and a statement about the inevitability of the decay of manmade structures, and perhaps our civilization, too.
For some time now, visitors have been leaving calling cards...their business cards, other scraps of personal papers (see the airline luggage check receipt) and on occasion, shoes.
You can read more about Prada Marfa here and here. And from ArtForum.com, here.