Indian Air Force personnel parade during the 85th Air Force Day celebrations at Hindon Air Force base in Ghaziabad on October 8, 2017. (Photo by AFP Photo/Stringer)
The waning moon sets behind leafless sumac trees on a crisp, clear morning, Thursday, December 15, 2016, in Portland, Maine. Much of the northern Mid-Atlantic and Northeast will stay cold for the next couple of days as the arctic air remains stuck over the northern Appalachians, the National Weather Service said. (Photo by Robert F. Bukaty/AP Photo)
Britain's Princess Elizabeth clasps her hands in sympathy as Sergeant Jean Bayliss faints at her feet during an inspection of the guard of honour of the Women's Royal Army Corps at Shrewsbury Castle, Shropshire, on July 6, 1949. (Photo by AP Photo)
As cheap Chinese-made motorbikes flood Pakistan’s roads, fans of vintage Vespa scooters are scrambling to find spare parts and preserve models that hark back to a bygone era. Here: A restored Vespa scooter painted in Pakistani truck art style, is parked alongside traditionally-coloured scooters at a Vespa restoration and repair workshop in Islamabad, Pakistan February 27, 2018. (Photo by Caren Firouz/Reuters)