1. A single journey on Barcelona's metro/bus network costs €1.25. As you'll need to use some mode of transport at least three times, rather than paying for single journeys, buy a T-10 (ten journeys) for €6.90. It gives ten journeys for less than the price of six.

2. If you need a break from the crowds in the city centre, Barcelona's best known parks are a great place to chill out. The former is Gaudi's park just outside the city centre while the latter is located just ten minutes walk from Las Ramblas.

3. Found in the heart of the Barri Gotic, this cathedral was built between the 13th and 15th centuries, although the spire and façade weren't added until the late 19th century. While the interior of the cathedral is breathtaking, make sure to visit Capella de Lepanto in the same grounds where you'll find a pond of white geese. Open daily from 8.30am-1.30pm & 4pm-7.30pm; admission free.

4. One of Europe's most famous streets, there is something going on along the Ramblas twenty four hours a day. Pet stalls, flower sellers, human statues, buskers, magicians and other street entertainers make it one of the liveliest streets in the world.

5. It may cost up to €10 or more to gain entry to some of Gaudi's best known buildings, but it costs nothing to gaze at them. The eccentric architect's work can be seen at 14 locations around the Catalonian capital. The most central of these are the street lights in Placa Reial, and Palau Guell (both just off Las Ramblas). Not far from here are Casa Batlló and La Pedrera.