The Barnes Foundation, Philadelphia, Pennsylvania

The new museum in downtown Philadelphia that houses the famed Barnes collection was steeped in controversy before the construction crew ever broke ground. (The late Albert C. Barnes stipulated that his collection never move from its original home in Merion, Pennsylvania, which made things sticky.) But in the wake of a lawsuit, a documentary and years of construction, the Barnes Foundation moved its stellar art collection to its high-tech new home on Philadelphia’s Museum Mile this month. Cutting-edge window technology will allow visitors to see the masterworks—dozens of pieces by Degas, Van Gogh, Cézanne and other legends—in natural daylight for the first time in years. 2025 Benjamin Franklin Pkwy.; 215-278-7000; barnesfoundation.org.