Here we take a look at some of the more unusual things you can get up to in this wonderful vibrant Spanish city.
Aside from the stunning Sagrada Família and the Gothic Quarter (or Barri Gòtic in Spanish), a must-see whilst in Barcelona is the Calder Mercury Fountain.
It was designed by artist Alexander Calder and commissioned by the government, who were struggling to retake control of the city of Almadén back in 1937. The town, which is in the Spanish province of Ciudad Real, was the home of a mercury mine and was under siege at the time because of the Spanish civil war.
The fountain is now located in Joan Miró Foundation on Montjuïc Hill, having been donated by the artist himself. It is now placed in a glass case so visitors are safe from the harmful fumes that come off the fountain.
Meanwhile, if you're looking for a wondrous view of Barcelona, the Bunkers of Carmel are worth a visit.
The Bunkers were used by people to stay safe during the Civil War and protect themselves from aircraft battery. In the 1940s, it was populated and thus became a small village called Los Cañones, home to around 600 people. However, they were later moved out to make way for the Olympic Games in 1992 as a way of "cleaning up the city".
Now, it is visited by locals and tourists alike to enjoy the beautiful 360 degree views of the Spanish city. From the entrance to Parc del Guinardo, it is around a five to ten minute stroll up to the viewpoint. The best time to visit is at sunset when you can get stunning pictures of the sun coming down on the city beneath.