Las Vegas Monorail

THE STRIP. Las Vegas Monorail offers an environmentally-savvy alternative to traditional, air-polluting commutes. One of the nation's most eco-friendly public transportation systems, the monorail runs at 99% efficiency and helps reduce carbon monoxide emissions by an estimated 135 tons a year (it has a zero-emission design itself). Plus, it goes up and down the Strip in 15 minutes, without the hassle of heavy traffic. What could be better?