'Hop on hop off' tour buses can be a great way to get around Spain's larger cities. You have the option of traveling the full circuit and getting an overview of what to expect in the city or get on and off as many times as you want, seeing the sights as you go.
1. Madrid 'Hop on hop off' Sightseeing Tour Bus
Though Madrid is Spain's biggest city, most of the touristy areas are very centrally located and much of it is pedestrianized. You'd be better off taking a walking tour of Madrid than taking this bus.2. Barcelona 'Hop on hop off' Sightseeing Tour Bus
Barcelona is a big city, so a bus like this on your first day is an ideal way to get a rough idea of the layout of the city.After that, though, use the Barcelona Metro, which is quick and efficient.
3. Seville 'Hop on hop off' Sightseeing Tour Bus
Probably the best tour bus on offer here. Seville is quite large and the metro is still not finished. This is probably the only bus on this page that you might want to use for more than one day; after having got a good overview of the city on your first day, you can then use the bus to get around the city quickly and easily.4. Granada 'Hop on hop off' Sightseeing Tour Bus
With two routes on offer, the Granada tour bus is an excellent service. It also saves climbing the hills up to the Albaicyn and Alhambra.Combine with a Guided Tours of the Alhambra to get the best organized tours of Granada while still keeping the flexibility of independent travel.

