Watch the full-length episode at http://video.pbs.org/video/2365455109/?Utm_source=youtube&utm_medium=pbsofficial&utm_campaign=nama_covefullprogram (US Only) http://www.pbs.org/program/national-mall-americas-front-yard/
The United States National Mall, set in the heart of Washington, DC, is a place unlike any other on earth, and its history is equally fascinating. This special reveals the surprising and inspiring story of the Mall’s evolution.
Premieres Tuesday, April 21, 2015 at 8 p.m. ET. Check your local listings.
