CHICAGO TRANSIT AUTHORITY (CTA)
Read moreThe Chicago Transit Authority manages the 8 "L" Train lines, each designated by a color and all passing through the interior of the Loop, as well as the city's bus network. To use the CTA's bus and subway network, you need a rechargeable Ventra card, which costs US$5 to purchase. You can buy single metro tickets, but this option is only worthwhile if you only take the metro a few times, as it is more expensive.
LAS VEGAS MONORAIL
Read moreLaunched in 2004, this driverless monorail serves the eastern side of the Strip. It passes through seven stations: MGM Grand, Bally's & Paris, Flamingo & Caesars Palace, Harrah's & The Linq, Las Vegas Convention Center, Westgate and Sahara Las Vegas. The Las Vegas Monorail is mainly used by convention-goers at the Las Vegas Convention Center, but it also offers an interesting alternative for visitors staying away from the city's major casinos. Passes are more attractive than single trips.