Space Shuttle Discovery Makes One Final Flight -- PICTURES

(Ready photo submitted by Bob Zajko)

(Reader photo submitted by Rich Cooper)

(Reader photo submitted by Lorenzo Booker)

(Reader photo submitted by Brian Parillo)

(Reader photo submitted by Crystal Sullivan)

The Space Shuttle Discovery passes low over Washington D.C. on Tuesday, April 17, before landing at its final destination for display at the Smithsonian.  (Chet Susslin)

The Space Shuttle Discovery passes low over the Capitol.  (Chet Susslin)

The Bernard Family, from left, Ryan, 9, Liz, Matthew, 5, Vicky and Andrew, from Hartford Connecticut watch as Discovery makes a pass over Washington, D.C.  (Chet Susslin)

Construction workers on top of the Department of Commerce take a break to look for the Shuttle Discovery.  (Chet Susslin)

(Reader photo submitted by Allard Chu)

The Space Shuttle Discovery passes behind the Washington Monument.  (Chet Susslin)

(Reader photo submitted by Jeffrey L. Taylor)

(Reader photo submitted by Donald Chapman)

(UPI/Pat Benic)

Taken in Bethesda (Reader photo submitted by Taryn Fielder)

Taken from the 14th Street Bridge on the Southwest Waterfront (Reader photo submitted by Edward Smith)

Taken in Farragut Square (Reader photo submitted by Kevin A. Heron)

(Reader photo submitted by Matt Vasilogambros)

Taken from an office view in Crystal City (Reader photo submitted by George Baden)

The Space Shuttle Discovery passes low over Washington D.C. on Tuesday, April 17, before landing at its final destination for display at the Smithsonian.  (Chet Susslin)

Taken in Bethesda (Reader photo submitted by Taryn Fielder)

(Reader photo submitted by Kevin Mooney)

(Smithsonian National Museum of the American Indian)

As a final salute to the men and women who served in NASA's Shuttle Program for the past 30 years, the orbiter "Discovery" and the Boeing 747 Shuttle Carrier Aircraft perform a low pass over the Shuttle Landing Facility at the Kennedy Space Center, Florida on April 17, 2012. (UPI/Joe Marino-Bill Cantrell)

After serving the U.S. Space Program for nearly 30 years, NASA's space shuttle "Discovery" and the shuttle carrier aircraft took off shortly before 7 a.m. from Kennedy Space Center in Florida on April 17, 2012. Discovery is headed for the Smithsonian Museum's Steven F. Udvar-Hazy Center at Dulles Airport in Chantilly, Virginia, where it will be placed on permanent display for public viewing. (UPI/Joe Marino-Bill Cantrell)

In this photo released by NASA, workers attach space shuttle Discovery to the Shuttle Carrier Aircraft in the mate-demate device at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, April 15, 2012. Discovery will be transported to the Smithsonian National Air and Space Museum in Washington on Tuesday, April 17. (AP Photo/Kim Shiflett, NASA)

A view of the flight deck of space shuttle Discovery is seen in the Orbiter Processing Facility while the space craft is being decommissioned at the Kennedy Space Center in Cape Canaveral, Fla., Tuesday, June 21, 2011. Discovery will go to the Smithsonian Institution's National Air and Space Museum for public display and preservation, after the decontamination process is completed. (AP Photo/John Raoux)

Space shuttle Discovery lands at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, March 9, 2011.  (AP Photo/Stan Honda, Pool)

In a frame grab made from NASA TV, space shuttle Discovery leaves the International Space Station for the last time Monday, March 7, 2011. Discovery is due back on Earth on Wednesday. It's being retired after touchdown and sent to the Smithsonian Institution for display.  (AP Photo/NASA)

Space shuttle Discovery lifted off at 4:53 p.m. EST, February 24, 2011, from NASA’s Kennedy Space Center in Florida, for its final mission. Commander Steve Lindsey led the STS-133 crew to deliver the Permanent Multipurpose Module and Robonaut 2 to the space station. (NASA TV)