If you ask me all that info if it comes to visiting buildings inside you also find on Google Maps, tripadvisor and the tourist information of the place you visit. It is impossible to visit everything or even like what "everyone" seems to visit. And there is no need to.
I lately heard that the biggest disappointment of tourists is visiting musea. (So far I am good, I only visit what is of my interest, since everything is visible in the internet as well. So for me no Madame Tussaud).
Enjoy your journey.