Perched on the fourteenth floor of the Pontchartrain Hotel, Hot Tin is a rooftop cocktail bar styled after a 1940s artist’s loft, all lived-in couches and curio-crammed walls. The real draw is the view — a near 270-degree sweep of downtown and the Mississippi River — best enjoyed with a craft cocktail as the light goes gold. It opens daily in the early afternoon and welcomes the 21-and-up crowd.