It was difficultto find a right line as it was many of them outside the Cathedral and no signs or staff to help. Not the best 20 minuts under the rain to figure out where to go. Once you are inside - everything is amazing. The roof top was hard as it is slippery in rain weather. We got there by lift ( you must pay extra) but go down by foot through very narrow stairs.10 minuts on the roof and 15 minuts going down. Audioguide is a great help.

Amazing Cathedral, honestly a beautiful sight from above. Went with the stairs which was fine, however if you are old or have trouble walking please take the elevator upstairs. On the cathedral was nice and an amazing sight, however would be better if they had something like a small terrace.

It was very interesting and beautiful The only less pleasant moments were that At first, you don't get the audioguide at the beginning, but you go to the rooftop and after that when you go down inside the cathedral you already stay in line to get the audioguide. Second, I got the audioguide without earphones, so it wad pretty uncomfortable to always hold the phone at the ear. In rest, I liked the tour. Everything was really beautiful.)