It's a drink kiosk near the Diagon Alley performance stage called Eternelle's Elixirs of Refreshment or something like that. Each corner has a carving of a creature seen in the movies, like dementors, thestrals, basilisks, and the like. I've got pics of the other carvings that I'll share eventually.
EeyoreFan.........if you mean where is this restaurant, it's Mythos in IOA..........fantastic place to eat.......great service and food and a very unique decor...........