Founding-era brick, the strangest collector in America, and a door in a museum behind which Duchamp kept his last secret.
At the top of the steps Rocky ran up: Cézanne's Large Bathers, and the largest Duchamp collection anywhere, including Étant donnés, his last work, seen only through two holes in an old wooden door.
Albert Barnes's collection of Renoir, Cézanne and Matisse, hung exactly as he arranged it, beside door hinges and old ironwork, in a 2012 building by Tod Williams Billie Tsien.
America's first art museum and school (1805), in Frank Furness's polychrome building of 1876: Thomas Eakins, who taught here, and Mary Cassatt, who studied here.
A small Beaux-Arts museum (1929) with one of the largest Rodin collections outside Paris, behind a garden and a cast of The Gates of Hell.
Rooms, ruins and curiosities: the city's other museum.
Isaiah Zagar's maze of mosaics made from bottles, bicycle wheels, mirrors and broken tiles, filling a lot and the walls around it. He has covered more than 200 walls in the city.
The College of Physicians' museum of medical history: skulls, wax models, a wall of swallowed objects, and slides of Einstein's brain.
A Victorian natural history museum of 1865 that has barely changed since the 1890s: wooden cases, handwritten labels, and a lecture hall still in use.
Three generations of Wyeths, in a 19th-century grist mill by the river at Chadds Ford, about an hour away.
A sculpture park with gardens in Hamilton, New Jersey, about an hour away.
Philadelphia Museum of Art at opening → the Rodin Museum → the Barnes (booked) → lunch → PAFA → Magic Gardens before closing.