This is a vacation all by itself, one could spend months in here, Don't sit outside and lean on the glass pyramid, It is'nt allowed as we found out., even for a picture.
Beautiful, but have sad memories of a lady sitting inside holding her deceased child and mourning. A scene not easily forgetton. Make sure you climb up to see the gargoyles up close.
My daughter and I serendipitously found ourselves at the top of the Spanish Steps the night Spain won the World Cup. There must have been 10,000 people there!