As Europe starts opening up to travelers again, it’s more exciting than ever to think about the cultural treasures that await. For me, one of the great joys of travel is having in-person encounters with great art and architecture — which I’ve collected in a book called Europe’s Top 100 Masterpieces. Here’s one of my favorites:   

Beauty can take many forms. But since the very beginnings of the human species, the most popular subject for artists has always been the female body. Long before the...