From California to the nation's capital, Christmas trees take on many different forms during the 2012 holiday season.

The Christmas tree in downtown West Palm Beach, Fla.

President Barack Obama, first lady Michelle Obama, and their daughters Malia and Sasha participate with host Neil Patrick Harris in the 90th lighting of the National Christmas tree in front of the White House in Washington, D.C.

The Christmas tree and nativity scene in downtown Concord, N.H.

Christmas lights and festivities in downtown Mount Airy, N.C., more famously known as the birthplace of Andy Griffith.

Miniature Christmas trees in the village of Swanton, Vt.

The Christmas tree outside City Hall in Jackson, Miss.

A Christmas tree in downtown Miami.

The U.S. Capitol Christmas tree is pictured against a backdrop of the U.S. Capitol Building in Washington, D.C.

A red-and-white "sphere tree" consisting of thousands of LED light bulbs sits in Market Square in downtown Pittsburgh.

The Christmas tree in downtown Portland, Maine.

The official White House Christmas Tree festooned with ornaments is shown in the Blue Room at the White House as First lady Michelle Obama welcomed military families for the first viewing of the 2012 holiday decorations in Washington, D.C.

A view of the 80th annual Rockefeller Center Christmas tree lighting ceremony in New York City.

The towering Christmas tree outside the state Capitol building in Sacramento, Calif.

Christmas lights bedazzle the downtown square in Fayetteville, Ark.