Sneezewood

Historical marker location:

1200 Constitution Ave NW, The National Mall, District of Columbia

( Marker is on Madison Drive Northwest, 0.1 miles west of 12th Street Northwest, on the right when traveling west.)

Marker installed: 2019

Helenium autumnale. Aster family, North America

The city was built on a swamp: The area that is now Washington, D.C. was originally a swampy, marshy region along the Potomac River. The construction of the city involved extensive drainage and landfill projects to make the land suitable for building.