This magnificently preserved building is over 600 years old, and has become an important reference point for all of Alicante. The interior is nothing special; the most interesting thing is the exterior, and it looks remarkable, as if it's been shoehorned into the neighbourhood. It's located in the old city, so it's easy to get to, and there's no admission charge.
This 13th century cathedral has an interesting interior with a 17th century organ, carved wooden chairs, a couple of interesting chapels, and the cathedral museum, which houses occasional major works. Also, taking photos or videos inside is prohibited, discouraging many people from entering. However, the outside offers a nice walk and a little trip to the medieval era of the city. The sides of the cathedral have Gothic and Renaissance facades, and a cloister garden that will give you the smile you are looking for when travelling to new places and viewing pleasant situations around you.