welcome sign on the tarmac after watching the Space Shuttle Discovery

Guests hold a welcome sign on the tarmac after watching the Space Shuttle Discovery and NASA's Boeing 747 Shuttle Carrier Aircraft

National Air and Space Museum in Chantilly, Virginia.

The shuttle Enterprise sits the area in the Smithsonian National Air and Space Museum Steven F. Udvar-Hazy Center's McDonnell Space Hangar where space shuttle Discovery will be displayed, April 17, 2012 in Chantilly, Virginia.

NASA 747 Shuttle Carrier Aircraft

Space shuttle Discovery, mounted atop a NASA 747 Shuttle Carrier Aircraft (SCA), flies over the Washington skyline as seen from a NASA T-38 aircraft in this April 17, 2012 NASA handout photo.

Beach Sand Artist Creates Massive Drawings

English artist Jamie Wardley uses a unique canvas to create his huge masterpieces, the beach. He finishes his drawings within the six-hour window he has every day, before the tide comes back in and his art is washed away. English and Scottish beaches are where he does all of his sand art.

Amazin Railway track

The Chaсaral - Llantas Potrerillos line in Chile is one of the most stunning railways in the world. It connects Chaсaral at the Pacific coast with Potrerillos, a remote mining town in the Andes on 2850m/ 9350ft. On the last 66km between Llantas and Potrerillos, the railroad first passes a rugged, lonesome valley and finally winds up to the terminus of the line, passing a breathtaking mountain scenery. The Railroad Chaсaral - Potrerillos, today operated by Ferronor, actually belongs to Codelco, a state owned copper mining company.