A protester sprays paint on the window of a bank during a rally against Expo 2015 in Milan, Italy, April 30, 2015. The Milan Expo will open in the city on May 1. Officials are counting on some 20 million visitors to the six month-long exhibition of products and technologies from around the world. (Photo by Stefano Rellandini/Reuters)

Figurines representing French Brigade of Lancers are seen on a 40-square-metre miniature model of the June 18, 1815 Waterloo battlefield, in Diest, Belgium, in this picture taken on April 29, 2015. Waterloo enthusiast Willy Smout said he spent 40,000 hours and around 150,000 euros over the past 40 years, to recreate the battlefield as closely as possible in a purpose-built room in his house. (Photo by Francois Lenoir/Reuters)

A Buddhist monk catches an aerial view of Kathmandu from the damaged Swayambhunath Stupa premises in Kathmandu, Nepal, Wednesday, May 6, 2015. The April 25 earthquake killed thousands and injured many more as it flattened mountain villages and destroyed buildings and archaeological sites in Kathmandu. (Photo by Niranjan Shrestha/AP Photo)

The New World porcupine, family Erethizontidae, 1280 Gram born at 11 April 2015 Inventory in Zoo. Counting trade Fairs Weighing the Zoo is at 7 May 2015 too the 108 Birthday Zoo Hagenbeck Hamburg, Germany. (Photo by Imago/ZUMA Wire)

Visitors attend the balloon festival on the Eid al-Fitr holiday at Ronggolawe Stadion on April 23, 2023, in Wonosobo, Central Java, Indonesia. Javanese people fly giant hot air balloons during Eid, which has long been a tradition of the Wonosobo regency. (Photo by Garry Lotulung/Anadolu Agency via Getty Images)

Dancers from the McLoughlin school in Glasgow, Scotland put on make-up as they get ready to participate in the 2022 World Irish Dancing Championships on its 50th anniversary, in Belfast, Northern Ireland on April 14, 2022. (Photo by Clodagh Kilcoyne/Reuters)

Jubilee Class steam locomotive 45596 Bahamas crosses the Forth Bridge on its way from Edinburgh Waverley to Aberdeen on a day trip operated by The Railway Touring Company on Wednesday, April 19, 2023. (Photo by Jane Barlow/PA Images via Getty Images)

The scene in Star Lane, Dunmow, Essex, after a steam traction engine from Sussex on its way to the Saffron Walden Crank Up weekend steam show, crashed into a private dwelling on Friday, April 21, 2023. (Photo by Nicholas.T.Ansell/PA Images via Getty Images)