Flickr photo credit: Ed Webster

The Miami Metromover is a free monorail system provided by Miami-Dade Public Transit.  There are three lines: a line that goes from the outskirts of Overtown to Downtown Miami, a line that goes from Downtown Miami to Brickell, and a third line that loops around selected stops around downtown Miami. 

The Metromover cars are unattended, and run 24 hours a day.