The Number 4: The Number | On a Scrabble Tile | Written
It's been rather difficult to find a photo taken during our trip that really matches this prompt. I went through the photos and couldn't find a number 4 anywhere. This is about as close as I could get and even then I've cropped it so that there are only 4 long windows showing.
This is the view from the visitor's centre in the Tetons National Park.