Boy Scouts from across the country braved the cold and rain for a "Star-Spangled Banner Camporee" in celebration of the group's 100th anniversary this past weekend.

Nearly 6,000 Scouts gathered at Fort McHenry in Baltimore, Md., Saturday, to commemorate the milestone.

The centennial Boy Scouts of America celebration included a two-day slumber party, historic re-enactments, a laser show and special guests.

Baltimore Police Commissioner Frederick Bealefeld III brought the city's SWAT team and helicopter for a unique demonstration for the Scouts.

Donald Rumsfeld also made an appearance. The former Secretary of Defense was an Eagle Scout.