Barcelona Bus Turistic, a tour of Barcelona by double-decker bus, is one of the best ways to explore the magnificent city. You have the choice of different routes of about two hours, and you can get on and off as many times as you like, at one of 37 stops. Just don't lose your ticket! Feel free to take a 24-hour package that will cost you around 25 euros and check the website for the latest special offers. In addition to an included autoguide service, you will be provided with useful information about the city, various key places, and the most emblematic and attractive monuments. The 'Hop-on, Hop-off' tour is one of the best ways to become familiar with the city and to discover the best areas to explore. It is an essential and fun activity for a first visit to Barcelona.