Happy Independence Day, USA !

On the 4th of July, the United States observes a federal holiday in honor of the Declaration of Independence.

The United States celebrates Independence Day on July 4th each year.

Fabulous firework displays were seen across the country as Americans  celebrated the 4th of July weekend on Sunday to mark the United States'  Independence Day.

People attend the Thunderfest celebration at the Corvette Museum  Amphitheater in Bowling Green, Ky. The event featured a variety of food  trucks, games, live music and a fireworks show.

Residents and tourists line the edge of Lake Michigan near Navy Pier to watch Chicago's Fourth of July fireworks display.

Fireworks explode above the Corvette Museum Amphitheater in Bowling Green, Ky. during the Thunderfest celebration.

Fireworks explode above the Corvette Museum Amphitheater in Bowling Green, Ky., during the Thunderfest celebration.

Fireworks explode during the Iowa City Jazz Festival on the Pentacrest in Iowa City, Iowa.