The Single Fastest and Most efficient Road to travel from the Pentagon to the Smithsonian is first the entrance to Highway 395 which is colored yellow orange then a burnt Orange line ;14th street Bridge on Highway 395
o
No matter where you are coming from the easiest and fastest way to get to the Washington Monument is to take Metro. Get off at the Smithsonian stop and walk west about 700 feet.
Washington Metro was created in 1976.
40 minutes 40 minutes
According to the Wikipedia page for the Washington Metro, the Washington DC Metro rail first opened it doors in 1976.
You can purchase Washington Metro tickets at vending machines located at Metro stations or online through the official Metro website.
Transportation options for traveling to and from Washington Dulles International Airport include taxis, rideshare services like Uber and Lyft, shuttle services, public transportation such as the Silver Line Metro, and rental cars.
Orange Line - Washington Metro - was created in 1978.
Blue Line - Washington Metro - was created in 1977.
Red Line - Washington Metro - was created in 1976.
Washington - Los Angeles Metro station - was created in 1990.
The Washington Metro was opened on March 27th, 1976. According to the Washington D.C. tourist page the metro is thirty seven years old and carries almost one million people daily.