Someone I know and I just got back from a cultural pilgrimmage to upstate New York. It began on the shores of beautiful Lake Otsego, called "Glimmerglass" by James Fenimore Cooper, at the Glimmerglass Opera Festival, where we attended a wonderful production of Leos Janacek's Jenufa, title role sung by Maria Kanyova, conducted by Stewart Robertson, directed by Jonathan Miller. It was just terrific. Singing, production, orchestra, staging were all just right. Rural Moravia became rural America, the sets and costumes were something out of Thomas Hart Benton (or Grove City, PA). Incredibly, even with tickets at $41 (a bargain), there were lots of empty seats, possibly because the New York Times didn't review this production--maybe because it is heading to the New York City Opera. A "Must-See". I think it has a few more performances to go before the season ends. You can check for tickets here. 
Then, it was a short drive to Catskill, New York, to see the home and studio of Hudson River School painter Thomas Cole, known as Cedar Grove. Run by the Greene County Historical Society, with hourly tours costing only $7, it was a fascinating glimpse into 19th Century American arts and life. Thomas Cole painted some his most famous canvases right in the house, before his in-laws (he lived with his wife's family) built him a studio. He died young, at 47. The home stayed in the Cole family until the 1980s, and only opened as a museum in 2001. Our expert guide, named David Herman, explained the irony that Cole's newest studio, built two years before he died, as an outbuilding on the property, was torn down at a time when you could buy a Thomas Cole masterpiece for $5,000. Well, he's famous again, and there are plans to rebuild on the original foundations.
The place was packed with tourists, including some from as far away as Japan, though when our tour guide asked, there were no representatives from New York City, where Cole made his name. Another "Must-See."
Across the Rip Van Winkle Bridge, spanning the Hudson River, sits Olana, home of Frederick Church, another Hudson River School master. Perched on a hilltop, with a fantastic view of the Catskills and Hudson River Valley, this castle-like pile, in a Victorian Persian-Turkish fantasy style--was closed to the public, for a year. The folks at Cedar Grove said it was either for fire protection or air conditioning (or both). Unlike Thomas Cole's home, this pretentious castle is owned by the State of New York, and had signs announcing massive funding from places like the National Endowment for the Humanities. We were there on a weekday--and saw no evidence of any work actually being done, no construction noise, no trucks moving. Nothing. Your tax dollars at work. Still, the grounds are impressive, with landscaping by New York Central Park designer Calvert Vaux. And the view is worth the trip up the hill. Ovwerall, I prefer Cedar Grove for its air of personal charm, and the terrific guides.