Open daily 10 a.m. to 5:30 p.m.
Admission is always free!
2 Massachusetts Ave., N.E.
Washington, DC 20002
The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.
Free City Delivery began under the eye of Joseph Briggs, a Cleveland, Ohio, postal employee.
Learn more About Joseph Briggs and the Free City Delivery
The letter carrier's mailbag is an easily identifiable icon of the service.
Learn more About Mailbags
Most American households did not have mailboxes before 1916, the year the Post Office Department made them mandatory.
Learn more About Household Mailboxes
Before households had mailboxes, postmen really did ring twice to signal the mail's arrival.
Learn more About The Postman Always Rang Twice
Letter carriers' uniforms have changed over the years, but they continue to be easy to recognize.
Learn more About Carriers and Their Uniforms
Pneumatic tube service began in 1893 in Philadelphia, carrying mail underground at 35 miles per hour.
Learn more About Pneumatic Tube Mail