In this Wednesday, March 27, 2019 photo, construction projects can be seen in Kabul, Afghanistan. The Special Inspector General for Afghan Reconstruction monitors billions of dollars in U.S. aid to the country. It issued a new report on Thursday identifying main high-risk areas for Afghanistan. They said concerns include widespread insecurity, underdeveloped civil policing capability, endemic corruption, sluggish economy, the Taliban-run narcotics trade, threats to women's rights and the reintegration of as many as 60,000 heavily armed Taliban fighters. (Photo by Rahmat Gul/AP Photo)





People walk through the Tree Library park in Milan, Italy, Sunday, December 9, 2018. If Italy's fashion capital has a predominant color, it is gray not only because of the blocks of uninterrupted neoclassical stone buildings for which the city is celebrated, but also due to the often-gray sky that traps in pollution. The city has ambitious plans to plant 3 million new trees by 2030_ a move that experts say could offer relief to the city’s muggy and sometimes tropical weather. (Photo by Luca Bruno/AP Photo)





A plane is seen from Chua Uma, a neighbourhood that changed thanks to urban art, in La Paz, Bolivia on June 27, 2019. (Photo by David Mercado/Reuters)





Towers of the Moscow International Business Centre shrouded in mist in Moscow, Russia on April 11, 2019. (Photo by Dmitry Serebryakov/TASS)





A bird flies past the Notre Dame Cathedral in Paris, Thursday, April 18, 2019. Nearly $1 billion has already poured in from ordinary worshippers and high-powered magnates around the world to restore Notre Dame Cathedral in Paris after a massive fire. (Photo by Christophe Ena/AP Photo)





Aerial view of Irish urban artist Fin Dac's mural “Magdalena”, in honor of Mexican painter Magdalena Carmen Frida Kahlo, in the month of her birth, in Guadalajara, Jalisco state, Mexico, on July 14, 2019. (Photo by Ulises Ruiz/AFP Photo)





A screen shows action replay of a rugby seven match between Canada and Brazil during the Pan American Games inside a stadium where homes can be seen on the hillside behind in Lima, Peru, Sunday, July 28, 2019. (Photo by Moises Castillo/AP Photo)





The leaves of a tree have partially changed to display its autumn colors near the Eiffel Tower in Paris, France, October 7, 2015. (Photo by Jacky Naegelen/Reuters)





An aerial view shows the skyline of the capital Moscow in Russia, October 29, 2015. (Photo by Andrey Kuzmin/Reuters)





The moon rises behind the CN Tower, a Canadian landmark, and the skyline in Toronto, Canada November 24, 2015. (Photo by Mark Blinch/Reuters)





A general view of the luxury Burj al-Arab Hotel at Jumeirah area in Dubai, UAE December 9, 2015. (Photo by Karim Sahib/Reuters)





Burj Khalifa, the world's tallest tower, is seen in a general view of Dubai, UAE December 9, 2015. (Photo by Karim Sahib/Reuters)





A helicopter flies over the Jumeirah neighbourhood in Dubai, UAE December 9, 2015. (Photo by Karim Sahib/Reuters)





Burj Khalifa, the world's tallest tower, is seen in a general view of Dubai, UAE December 9, 2015. (Photo by Karim Sahib/Reuters)





The Unicredit headquater (C) is seen at Porta Nuova's district downtown Milan, Italy, January 13, 2016. (Photo by Stefano Rellandini/Reuters)





Milan's business district skyline is seen from Duomo's Cathedral downtown Milan, Italy , January 13, 2016. (Photo by Stefano Rellandini/Reuters)





General view of the skyline of La Defense business district with its Arche behind Paris' landmark, the Arc de Triomphe and the Champs Elysees Avenue in Paris, France, Janury 13, 2016. (Photo by Charles Platiau/Reuters)





General view of the Sacre Coeur Basilica on Montmartre in Paris, France, January 13, 2016. (Photo by Charles Platiau/Reuters)





A view of Malaysia's landmark Petronas Twin Towers in Kuala Lumpur is seen in this June 27, 2013 file photo. (Photo by Bazuki Muhammad/Reuters)





The Canary Wharf financial district stands in London, Britain on August 11, 2019. (Photo by Simon Dawson/Reuters)