The Cavalieri Hilton (www.cavalieri-hilton.com), set in a 15-acre park on the Monte Mario, Rome’s highest hill, is known for its panoramic views of the city. But from September through May, guests can enjoy a vista bellissima without leaving the lobby. There, during the Rome Cavalieri Hilton Tea with Tiepolo, an English tea that takes place each afternoon, you can view three massive paintings by the 18th-century Italian artist Giovanni Battista Tiepolo. The Cavalieri, which completed a $50 million renovation in 2005, houses a wide range of fine art and antiques, including paintings by Andy Warhol and a crib built for Napoléon’s son, François-Charles-Joseph (later the Duke of Reichstadt). For guests who succumb to the influence of Tiepolo’s wrestling study, Hercules and Antaeus, the Cavalieri also offers a Gladiator Training program, in which experts and students dressed in traditional costume wield authentic weapons while engaging in ancient combat techniques. Another 18th-century Italian artist, Giovanni Battista Piranesi, is famous for his works on paper, but he designed furniture and interior decorations as well. Piranesi as Designer, which opens at Manhattan’s Cooper-Hewitt National Design Museum (www.cooperhewitt.org) on September 14 and continues through January 20, will feature more than 100 of the artist’s etchings, original drawings, and decorative art objects. Just two of his furnishings, both five-legged tables with marble tops, still exist, and one will appear here. The other was deemed too fragile to travel to New York from its current home in Minnesota.