The Administration Building of the Carnegie Institution is located at 1530 P Street, NW (the corner of 16th and P Streets), three blocks due east of Dupont Circle (the nearest Metro stop) and ten blocks due north of the White House. It is easily accessible by public transportation. 

Metro information can be accessed here http://www.wmata.com/

The Washington DC area is served by three airports: Reagan National, Baltimore Washington International Airport , and Dulles International Airport . More about them and other DC-area resources can be found at this link:

 http://dc.about.com/od/transportation/a/WashDCAirports.htm

Travel Directions:

GoogleMaps map and directions (opens a new window)
MapQuest Driving Directions (opens a new window)

Parking Hours:

Thursday 7 am – 12 am midnight

Friday 7 am – 1 am.

Saturday 9 am – 1 am

Sunday 7 am – 11 pm.