Complex sentence: The Doria Pamphilj Gallery is a large art collection housed in the Palazzo Doria Pamphilj in Rome, Italy, between Via del Corso and Via della Gatta.
Split into simpler sentences: The Doria Pamphilj Gallery is a large art collection housed in the Palazzo Doria Pamphilj in Rome, Italy. It is situated between the Via del Corso and Via della Gatta.