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No, not that Shea Stadium. This is an all-ages DIY music venue.
The area around the Bedford Avenue subway stop is one of the most lively areas and a great place to hang out and see hipsters (as well as many tourists).
Small storefront museum with random artifacts from the city's history.
Housed in the former Kings County Savings Bank Building, constructed in 1867. Features art exhibitions and displays of historical art and artifacts.
The brewery has grown to buildings on both sides of 11th, and they offer tours on both weekends and weekdays. The tour is a lot of fun and educational, and you get tokens to sample some of the delicious brew. They don't have a kitchen, but some great local pizza places deliver to the brewery -- it may seem odd but it's encouraged. There are some no reservation tours on Saturday and Sunday, with reservations required for smaller, more private tours Monday through Thursday. On Friday there are no tours, but it's a popular hangout. More information on tours can be found at their website.
The area all around the Jefferson stop on the L train is an open-air gallery of some of the best street art in the world.