Old Post Office Museum

The Best Things to Do in Washington, D.C.

"Rising 270 feet above Pennsylvania Avenue, the observation deck offers breathtaking, panoramic views of the National Mall and landmarks like the White House, U.S. Capitol, Washington Monument, and Lincoln Memorial; the beautiful 19th-century building (which also houses the Waldorf Astoria Washington, D.C.) is open for tours daily from 9 a.m. to 5 p.m. (last entry 4:30 p.m.)." - Dobrina Zhekova Dobrina Zhekova Dobrina Zhekova is a writer with over a decade of editorial experience in Europe and the U.S. She covers luxury travel, art, architecture, and design. Her writing has appeared on InStyle.com, Vogue.com, Elle.com, and more. Travel + Leisure Editorial Guidelines