The following is a city-by-city guide to some of Italy\'s art exhibitions: AOSTA - Centro Saint-Benin: Giorgio de Chirico, The Labyrinth of Dreams and Ideas; 65 works including 40 oil paintings; until September 30. COMO - Villa Olmo: Boldini and the Belle Epoque, 60 works, until July 24. FLORENCE - Galleria dell\'Accademia: Art Returns Art; contemporary masters including Bacon, Klein, Burri, Kounellis, Picasso and Warhol; until November 4. - Palazzo Strozzi: Picasso, Miro\', Dali\', Young and Angry: The Birth of Modernity; until July 17. LUCCA - Lucca Center of Contemporary Art: David LaChapelle, 53 photos; until November 4. OTRANTO - Castello Aragonese: Andy Warhol, I Want To Be A Machine; 50 works, until September 30. PAVIA - Castello: Leonardeschi, From Foppa to Giampietrino, 22 works loaned from Hermitage, many of them believed to be by Leonardo until end of 19th century; until July 10. PERUGIA - Galleria Nazionale dell\'Umbria: Luca Signorelli, 66 works in biggest show ever on Tuscan Renaissance master, featuring loans from Italy and abroad; until August 26. REGGIO EMILIA - Palazzo Magnani: Don McCullin, The Impossible Peace, From War Photos To Landscapes 1958-2011; 160 photographs; until July 15. ROME - Castel Sant\'Angelo: The Popes Of Memory, seven centuries of papal life through 130 masterpieces; until December 8. - Macro: Neon, The Luminous Material of Art, 70 works by 50 artists over 80 years including Dan Flavin, Maurizio Cattelan, Mario Merz, Alfredo Jarre, Pascale Marthine Tayou; until November 4. - Galleria Nazionale d\'Arte Moderna (GNAM): Andy Warhol Headlines; until September 9. - Palazzo delle Esposizioni: 100 works from Stadel Museum in Frankfurt including Tischbein, Corot, Monet, Degas, Renoir, Van Gogh, Cezanne, Redon, Munch, Ernst, Klee, Picasso; until July 17. - Musei Capitolini: \'Portraits, The Many Faces Of Power\', 150 Roman heads, busts, statues ranging from early terracotta works to deified images of imperial rulers; until September 25. - Colosseum: Nero; until September 18. - MAXXI: Michelangelo Pistoletto, From One To Many, 100 works, 1956-1974; until August 15. ROVERETO - MART: Fausto Melotti, Geometrical Angelical, also works by de Chirico, Carra\', others; until September 30. - same venue: Impressionists and Post-Impressionists, 75 works loaned from Musee\' d\'Orsay including Monet, Pissarro, Sisley, Renoir, Degas, Toulouse-Lautrec, Van Gogh, Gauguin, Vuillard, Denis, Courbet; until July 24. STRA - Villa Pisani: \'The Nobility of Work, Arts and Crafts in Venetian Painting from the 1800s to the 1900s\'; until November 4. TIVOLI - Villa d\'Este: Magnificence at Table; the art of Renaissance banquets; until November 4. TURIN - Reggia di Venaria: La Bella Italia, celebrating 150th anniversary of Italian unity; 350 works tracing various ex-capital cities including Florence, Turin, Milan, Genoa and Naples as well as Rome; plus art giants like Giotto, Donatello, Leonardo, Raphael, Michelangelo, Titian, Tiepolo, Canova, Bernini; until September 11. VENICE - Ca\' Foscari: \'William Congdon in Venice (1948-1960): An American View\'; until July 8. - Punto della Dogana, Francois Pinault Foundation: \'Praise of Doubt\', 60 works by 20 contemporary giants including Maurizio Cattelan, Jeff Koons, Jeff Bauman, Adel Abdessemed, Marcel Broodthaers, Dan Flavin, Thomas Schutte and Charles Ray; until December 31, 2012.