C.V.
Eat at the Eiffel Tower restaurant, epensive but the view and atmosphere is beautiful! Ride the roller coaster at New York New York. Visit Ghostbar at the Palms, another beautiful view and reason to get dressed up and dance.
You can get a tattoo inside the Palms, I think also at the Miracle Mile shops too. Take a Gondola ride at the Venetian. The Mandalay Bay has a pretty cool aquarium and shark reef. If I think of any more I'll edit, I've been there tons of times!