Space shuttle Discovery sits atop NASA's 747 Shuttle Carrier Aircraft (SCA) ready to transport it from Kennedy Space Center to the Washington D.C., on April 17, 2012 in Cape Canaveral, Florida. Following the retirement of the shuttle fleet, Discovery will fly to Washington for display at the Smithsonian's National Air and Space Museum. (Photo by Lofty Ambitions)

“The RSPB’s Snettisham Nature Reserve lies on the edge of The Wash, one of the most important bird estuaries in the United Kingdom. The Wash, on England’s east coast, supports over 300,000 birds, and Snettisham sometimes holds more than a third of them”. – The Palm Beach Post. Photo: Waders flock together seeking new feeding grounds during the incoming tide. (Photo by Dan Kitwood/Getty Images via The Palm Beach Post)

This April 9, 2016 photo provided by Bertrand Piccard via Global Newsroom shows Piccard taking a selfie on board Solar Impulse 2 during a test flight over the Pacific Ocean. The solar-powered airplane on an around-the-world journey had traveled 80 percent of the way from Hawaii to California by Saturday, April 23. The aircraft's destination on this leg of the journey is Mountain View, Calif., at the southern end of San Francisco Bay. (Photo by Bertrand Piccard/Global Newsroom via AP Photo)

Tourists and journalists stand next to a newly displayed statue of pharaoh Amenhotep III and his wife Tiye (Down) in Egypt's temple city of Luxor on March 23, 2014. Two colossal statues of pharaoh Amenhotep III were unveiled by archaeologists today in their original sites in the funerary temple of the king, on the west bank of the Nile in Luxor, adding to the existing two famous ancient Memnon colossi. (Photo by Khaled Desouki/AFP Photo)

Maria Ines Banegas portraying “La Pirata” (The Pirate) takes part in a human living statues contest in Buenos Aires, Argentina, September 24, 2016. (Photo by Enrique Marcarian/Reuters)

In this aerial file photo taken on Tuesday, October 31, 2017, a woman walks past a statue of Soviet Union founder Vladimir Lenin at the Russian leased Baikonur cosmodrome, in Kazakhstan. The thousands of statues of Vladimir Lenin spread across the vast region bring to mind poet Vladimir Mayakovsky's ringing line of devotion: “Lenin lived, Lenin lives, Lenin will live”. (Photo by Dmitri Lovetsky/AP Photo)

A flight attendant wearing a Brazil soccer team jersey demonstrates the emergency mask on an airplane travelling from Kunming to Hangzhou June 23, 2014. A Chinese airline company renovated the cabin of one of its flights then dressed the flight attendants with soccer jerseys as a way to celebrate the 2014 Brazil World Cup and hoping to attract more customers, local media reported. (Photo by Wong Campion/Reuters)

Ethiopian Airlines female pilots prepare the plane before takeoff at Bole international airport in the capital Addis Ababa, November 19, 2015. Ethiopia Airlines on Thursday, dispatched its first ever all-female operated flight. Every aspect of the journey was handled by women, from the ground crew, aircraft maintenance to traffic controllers. Gualu and her co-pilot were charged with flying the crew and passengers to Bangkok, Thailand. (Photo by Tiksa Negeri/Reuters)