Ariccia is a gem of Baroque town planning. When millionaire banker Agostino Chigi became Pope Alexander VII, he commissioned Gian Lorenzo Bernini to redesign his country estate to make it worthy of his new station. Bernini restructured not only the existing 16th-century palace, but also the town gates, the main square, with its loggias and graceful twin fountains, and the round church of Santa Maria dell'Assunzione (the dome is said to be modeled on the Pantheon). The rest of the village was coiled around the apse of the church down into the valley below.
Ariccia's splendid heritage was largely forgotten in the 20th century, and yet it was once one of the highlights of every artist's and writer's Grand Tour. Corot, Ibsen, Turner, Longfellow, and Hans Christian Andersen all came to stay here.