Centuries ago, if you wanted to see the paintings of the great Italian masters, you would have embarked on something called The Grand Tour, a kind of traveling educational experience to the principal artistic centers of Renaissance Italy: Rome, Milan, Bologna, Florence, Siena, Naples and Venice.

This summer, The Grand Tour, by way of Glasgow, Scotland, is coming to Allentown.

The Allentown Art Museum of the Lehigh Valley is one of the stops on an once-in-a-lifetime American tour of paintings by some of the greatest names in Italian art. It's a rare opportunity to see the work of artists that quite literally changed the world. And admission will be free, due to an initiative to make the museum more accessible.