LAS VEGAS (AP) — A lifelike network of twisting tree roots emerges from the ceiling and branches out into the lobby featuring green, earthy accents, crystal chandeliers and soon, work from British Pop Art legend David Hockney. Steps away from the check-in desk, Pablo Picasso artwork graces a South of France-inspired restaurant. Not one slot machine is within sight of the lobby at this Las Vegas casino-hotel. With a robust art collection, rooms with a residential feel and an overall romantic atmosphere that contrasts sharply with the city's stereotypical glitz, the Monte Carlo is being transformed from an antiquated midlevel property taking up prime real estate on the Las Vegas Strip into the upscale Park MGM casino-hotel.