Berlin’s “city bikes” that can be accessed anywhere by using your handy (info bit: cell phones are called “handies” here)! You just call the number on the bike and it pops the lock open. These fancy bikes can be found around town; however, I didn’t see a centralized location for them — nor could I figure out what you do when you come outside and the bike is gone because someone called it!
There are also “free bikes” located in various places within Berlin. You just put a deposit down in the morning at these stations and the bike is free until a certain hour that night (you can keep it longer for a fee — like a rental).
This article is part of the Exploring Transportation in Europe series.