The Las Vegas Monorail is 3.9 miles long, with its southern terminus at MGM Grand and its northern terminus at the Sahara (the monorail shops and offices are just east of the Sahara, where the trains turn around).
The stations are named MGM Grand, Horseshoe-Paris, Flamingo-Caesars, Harrah's-LINQ, Boingo at the Convention Center, Westgate, and SLS.
The monorail does run by the back of the Venetian and gets very close to the Venetian Expo Center and the Sphere, half a block or so, at the corner of Koval and Sands avenues, but it doesn't stop at either.
The monorail operates 7 days a week from 7 a.m. to midnight Monday, 7 to 2 a.m. Tuesday through Thursday, and until 3 a.m. Friday through Sunday. Trains are frequent, every 4-8 minutes.
For e-tickets that you buy online, a single ride is $5.50; unlimited-ride passes are for one day ($123.45), two days ($23.75), three days ($29.95), four days ($37), five days ($44.50), and seven days ($57.50). Full fares that you buy at the stations are a few bucks higher (between $6 for the single ride and $62 for the seven-day pass).
Careful: Folded, bent, or damaged tickets won't open the fare gates and won't be refunded.
Check out the Las Vegas Monorail website for updated information.