Philadelphia hosted a hugely successful World's Fair to mark the U.S. centennial in 1876. The city hosted another one 50 years later for the sesquicentennial, but things didn't go smoothly.
On the main street of Cuba City, Wisc., there's a Parade of Presidents, with decorative shields for each President, begun as a bicentennial project in 1976. Donna Rogers keeps it all going.
Residents from Kerrville mark the somber first anniversary of the catastrophic flood that brought death and destruction to communities along the Guadalupe River in central Texas.