Photos show how cities across the US celebrate Thanksgiving

Millions of people are flooding New York City's streets today for the 2017 Macy's Thanksgiving Day parade. Around fifty million more are expected to watch it on TV.

NYC's parade centers around huge floating character balloons, with this year including Olaf from "Frozen" and the Grinch. There are also dozens of new floats, many of which serve as moving advertisements for brands ranging from Sour Patch Kids to Delta Air Lines.

Other cities have their own parade traditions, from performers in 17th century-style costumes in Plymouth, Massachusetts to "Star Wars" costumes in Los Angeles.

Take a look at how seven urban centers across the United States celebrate Thanksgiving.