Paris has the Louvre, New York has the Met and Washington, D.C., has the Smithsonian. It's 19 museums and galleries strong, making it the largest "museum and research complex" in the world. Below, scenes of some of the museum's more intriguing works, by Kevin Lamarque of Reuters:
In Boston, Chicago, and Philadelphia, an informal code allows residents to claim a parking space after shoveling it out. But the practice is often at odds both with the law and with the mores of changing neighborhoods.