It wasn't just museums, cathedrals, and a big cemetery. We spent a morning at the Paris Opera House. I couldn't stop humming Masquerade from Phantom of the Opera as we walked down the grand staircase. There were 2 smaller matching reception areas on either end of the grand reception room. One of the rooms had this lovely ceiling with bats. There were many times I wanted to drop on the floor and shoot photos while on my back. Resisted the urge as it was very crowded.