There are many ways to explore Barcelona and among them is the option to do a so called city/ sightseeing tours. Barcelona offers different kind of city tours; for sport-enthusiasts it might be fun to explore the city by bike or - even better - from a helicopter. If you prefer having a drink on one of the many terraces and enjoy the view from there, the beer bike might suit your better! In this way you can enjoy your afternoon with friends with a little effort of using the treadles. Whatever you are coming for to Barcelona, there is always a tour that fits your needs.