In Balitmore, USA you can take the bus for free! As the public transport company says:
Free is good. And, free is faster because you don’t have to waste time looking for change or waiting in line for other riders to pay a fare.
Charm City Circulator consists of 21 hybrid electric buses running seven days a week. The first line, the Orange Route, launched Jan. 11 and eventually will be joined by two other lines. When all is said and done, the Circulator will connect landmarks like the Inner Harbor and the Johns Hopkins hospital complex to the city center and surrounding neighborhoods.
Perhaps more significantly, it will provide a link to other forms of transit, including trains, light rail, buses and water taxis.