Why pay all that money for an overpriced bus tour when you can travel around a new city with an inexpensive public bike? Not only are you keeping yourself physically active on your trip, but you're also saving your funds for other indulgences and you can go wherever you want — including places not accessible by vehicles!
This infographic from Momondo.com provides everything you need to know for your next vacation to such cities as London, Paris, Berlin, Amsterdam and Nice. You'll be prepped with info like how to register (e.g., online or in person? cash or credit?), statistics about the bike stations (e.g., the number of bicycles and docking stations available), route maps, prices, official websites and local tips.