Worth a detour from sightseeing, this year-round indoor market includes pop-up marketers hawking a particular specialty, such as small-batch pickles. At least 40 vendors set up in stalls or at counters selling fresh produce, flowers, cheeses, artworks—everything from olive oil to oysters. Stop by Salt & Sundry for lovely handcrafted gifts; visit Sundays at noon and join a yoga class. There’s always something popping up. It's open Tuesday to Friday 11am to 8pm, Saturday and Sunday 8am to 8pm.