Dornbracht, a German manufacturer of bath and kitchen fixtures is presenting a exhibit called "Global Street Food" which has removed street food carts from the streets and spotlighted them in a gallery on Dornbracht's campus.
I wish I had thought to photograph the many wonderful carts I had seen in my travels, but it never occurred to me then.
Here is grill from Kampala, Uganda.
And a cheese and sausage cart from Buenos Aires.
If you have photographs of interesting street food carts send (or point) them to me, and I'll post.