Families bundled up on Thursday to cheer as the 75th annual Thanksgiving Day parade rolled through the streets of downtown Houston.  Mayor John Whitmire and nine-time Olympic gold medalist Carl Lewis,

Road closures for the parade began on Tuesday for the staging of the parade floats. The parade begins at Smith Street and Lamar Street and will traverse more than 20 blocks, coming to an end at Smith and Dallas. Also, the Mayor's Office has shared what roads will be closed for the holiday event.

From how the parade began to its route, here are a couple of things you should know if you plan on going to the Thanksgiving Day parade.