The peloton rides across Twitchell Reservoir during stage 3 of the AMGEN Tour of California from Pimo Beach to Morro Bay on May 16, 2017 in Morro Bay, California. (Photo by Chris Graythen/Getty Images)





In this photo taken Saturday September 10, 2016, an aerial view of Beipanjiang Bridge across the Beipanjiang valley is seen in Shuicheng county in southwest China's Guizhou province. According to local media, the cable-stayed bridge under construction then features a 720-meter span, world's second longest span of this kind of bridge, and measures 565 meters above the river surface beneath it which makes it the world's highest bridge. (Photo by Chinatopix via AP Photo)





People walk through a bridge at the Old Summer Palace in smog on a polluted day as a red alert issued for air pollution in Beijing, China December 17, 2016. (Photo by Jason Lee/Reuters)





A runner is seen next to 25 April bridge in Lisbon, Portugal January 5, 2017. (Photo by Rafael Marchante/Reuters)





The Szabadsag Bridge with the frozen Danube River seen in a veil of heavy winter smog in Budapest, Hungary, January 30, 2017. (Photo by Laszlo Balogh/Reuters)





Photo taken on April 4, 2017 shows the cloud-wrapped Siduhe Bridge in Enshi, central China's Hubei Province. (Photo by Wen Lin/Xinhua/Barcroft Images)





A woman with a parasol crosses a bridge on the pond at Kiyosumi Gardens in Tokyo, Friday, May 19, 2017. The temperature in Tokyo soared to 26.3 degrees Celsius (79 degrees Fahrenheit). (Photo by Koji Sasahara/AP Photo)





The Tribute in Light memorial is seen in the Manhattan skyline from Brooklyn Bridge Park in Brooklyn, New York, September 10, 2016. (Photo by Mark Kauzlarich/Reuters)





A man walks on a bridge crossing over the Besor stream on a rainy day, near Kibbutz Tze'elim in Israel's southern Negev desert February 16, 2017. (Photo by Amir Cohen/Reuters)





Locals carrying crosses walk across a bridge during a Via Crucis representation on Good Friday, in the Basque town of Balmaseda, northern Spain April 14, 2017. (Photo by Vincent West/Reuters)





The Forth Bridge dominates the background as the Flying Scotsman steam train travels through the Fife countryside, during a tourist trip to the Scottish region and a visit to Edinburgh, Scotland May 14, 2017. (Photo by Russell Cheyne/Reuters)





A portion of the field of 1,500 runners compete in the Seven Mile Bridge Run over the longest of 42 bridges on the Florida Keys Overseas Highway near Marathon, Florida, U.S., April 1, 2017. The race was begun in 1982 to mark the completion of a federally funded program to build a then-new Seven Mile Bridge and three dozen other bridges that replaced spans built in the early 1900s. (Photo by Andy Newman/Reuters/Florida Keys News Bureau)





This photo taken Wednesday, June 29, 2011 released by China's Xinhua news agency shows the Jiaozhou Bay Bridge in Qingdao, east China's Shandong Province. China opened Thursday, June 30, 2011, the world's longest cross-sea bridge, which is 42 kilometers (26 miles) long and links China's eastern port city of Qingdao to an offshore island, Huangdao. (Photo by Yan Runbo/AP Photo/Xinhua)