Valencia has many of the things that attracts tourists to Spain, all in one place. Valencia, the third largest city in Spain, offers a great combination of city, sun and beach.There is a lot to see in Valencia. You could spend a day just at the City of Arts and Sciences, and there are some great museums. Here is some places you must to see. City of Arts and Sciences. Science museum, IMAX cinema and planetarium, opera house and marine park…. The Oceanogràfic is the biggest and most elegant aquarium in Europe with more than 45,000 species. Central Market (Mercado Central). One of the oldest food markets in Europe. And of course a graffiti. Valencia is a real hotbed for graffiti and street art and wonderful city  for photography.