4. Borghese Gallery, Rome
Housed in the stunning 17th century Borghese Villa, the Borghese Gallery and its magnificent gardens are among Rome’s most celebrated attractions. The collection is spread across twenty rooms on two floors. Visitors will view renowned paintings and sculptures by Titian, Bernini, Raphael and Caravaggio. Many art aficionados consider this gem of a gallery to be their favorite of all the art museums in Italy.