The Dome: The better part of checking out the cathedral, in my opinion, is climbing the measures to the highest of your dome along with the 360° outdoor panoramic rooftop terrace. From here, you get amazing sights of Madrid plus the Royal Palace. You'll be acquiring a timed entry ticket. https://www.kinship.co.uk/dog-lifestyle/what-to-do-with-your-dog-when-you-go-away-on-holiday