The High Roller is the giant observation wheel rising over the LINQ Promenade, between The LINQ and Flamingo casinos. The 28 glass cabins are large enough to walk around in — each can hold 40 passengers — and the half-hour ride circles slowly enough that you can take in the whole Strip at a leisurely pace.
Buy tickets for after dark to see the Strip lit up; daytime rides give better views of the desert and mountains beyond the city but the casinos themselves are most spectacular at night. Open-bar "Happy Half Hour" cabins exist if you want to drink your way around. Lines move quickly and you board cabins on the move, theme-park style.