Legos, gingerbread and gumdrops: How the Obamas decorated the White House for the holidays one last time

The White House has once again been transformed into a winter wonderland for the holidays, complete with snowball arches composed of more than 6,000 ornaments, 56 Lego gingerbread houses made from 200,000 Lego bricks, 8,000 bows and ribbons and 25,000 yarn pom-poms. 

The traditional White House...