On the second floor of ARIA Resort & Casino, in the midst of the hotel's Adam Tihany-designed sculptural courtyard, lies a cul-de-sac of three restaurants: Sirio Ristorante, Jean-Georges Steakhouse and Michael Mina's American Fish. The courtyard is striking, as it's composed of marble- and mirror-clad pyramids surrounding small barrel cacti, above which is a skylight decorated with dangling, interlocked mirrored triangles. The piece is not without meaning, as the pyramids signify camaraderie between the restaurants while the cacti signify the good-natured competition between them. Once your eyes have digested the garden they'll likely settle on the travertine and marble entrance of Sirio Ristorante, marked by a marble column with a plaque bearing its name, which is repeated above in the form of large black letters mounted to the restaurant's marble facade. As you turn into the restaurant -- which also was designed by Tihany -- there is a marble hostess station beneath a modern, gold-hued circular chandelier. Further past the hostess station, where there's another plaque, as well as a framed menu, is a life-sized photograph of an Italian street on which is a brick building with curving arches that makes you feel as if you are walking the streets of Rome. Directly in front, meanwhile, lies a red couch with small round tables made of dark wood, which are delicately decorated with orchids. Near those, two end tables hold gold-hued table lamps in the same style as the chandelier above the hostess station. Perpendicular to the couch and directly behind the hostess station is a marble wall with beautiful red and gold stained-glass cubes, which form an abstract structure with plants placed strategically inside and underneath it. This seating area is separated from the more casual dining area by etched glass screens framed in dark wood.