Paris Hop On Hop Off bus system works well. It has four routes. Three days is needed to see majority of attractions on those routes. Good value for money.

Really easy and great to avoid those queues

Barcelona City Tour was wonderful and very useful.I booked the tour for 2 days.I would recommend to book for 2 days because it is more time to get off and visit sites which are not in a city center.So I did orange tour one day and green tour another day.Because of Barcelona city tour I could visit Mountain Montjuic,Guell park, Mountain Tibidado,beaches of Barcelona.Tours are very well organized,buses operate very often.Information is very useful.So I would highly recommend that tour because it helps to see more of city's main atractions.

I booked my package online before we went and it was a great way to save money and see all three attractions for one price. The tours were excellent and we enjoyed all three tours at the Castle, The Royal Britannia and Holyrood Palace. The hop on hop service was great and very convenient

Really enjoyable tour and found it really interesting. Now we want to go on other hop on hop off bus tours in other cities.