Home to one of the most famous basilicas in the world, Barcelona has become the most popular tourist destination in Spain. When it comes to sightseeing, this city wins the game. The famous architect Antoni Gaudi left his mark on Barcelona, which can be seen in many of the avant-garde buildings this city has. Some of them are even UNESCO listed. If you are visiting Barcelona anytime soon, make sure to add the following places to your must-see list:
