It was a rainy Saturday in Boston, perfect for inside activities. So we visited the library — not just any library but the Boston Public Library, the first free municipal public library in the country. We walked up the marble stairway, past the lions and into the reading room.

Here were scholars at work, green-shaded lamps and a vaulted ceiling. Here was a temple of knowledge. The library holds 23 million items, I learn from its website, including Mozart’s scores, Shakespeare’s first edition folios and John Adams’s personal library.

The Boston Public Library serves 4 million people a year and millions more online (one of them me). It was the first public library to lend books and the first to offer a children’s room and a branch library.

I took only this one photo of the reading room, intruding any further would have been a desecration.