Catedral Primada de Toledo

One of the top gothic cathedrals in all of Europe.
Tickets can only be purchased on site, so you will want to arrive by its opening time of 10am (Monday through Saturday) and take your time exploring the space. Strollers are welcome as it is all on one floor (except for the climb to the bell tower). Admission is €12.50 and be sure to grab an audio guide.