An art installation called Spectra, by Japanese artist Ryoji Ikeda, lights up the London night sky to commemorate the centenary of Britain's involvement in the First World WarGettyA man photographs Ryoji Ikeda's installation Spectra near the House of Parliament, which will light up the London skyline for seven nights to commemorate the centenary of Britain's involvement in the First World WarGettyKate Middleton and Prince William pay their respects at the St Symphorien Military Cemetery in Mons, Belgium, to commemorate the 100th anniversary of the outbreak of World War OneReutersKate Middleton lays a floral tribute at St Symphorien Military Cemetery in Mons, Belgium on the 100th anniversary of Great Britain declaring war on GermanyGettyChildren take part in an event organised to pray for those affected by a magnitude 6.3 earthquake that hit southwestern ChinaReutersA tame rabbit searches for food in the ruins of a collapsed house in Longtoushan in China's southwest Yunnan province after an earthquakeAFPA woman walks past a damaged bus after a landslide in Sindhupalchowk district, Nepal. Authorities say there is no hope that more than 150 missing people are still alive after being buried under piles of rocks, mud and upturned trees in Mankha, about 120 kilometres east of Katmandu.GettyA broken telegraph pole is pictured on a road damaged by a mudflow triggered by flash floods in the San Bernardino National Forest community of Forest Falls, CaliforniaReutersHome owners and emergency personnel prepare to evacuate a village threatened by the forest fire near Sala, Sweden. The fire, covering thousands of hectares, is in its fifth day and firefighters believe it will burn for weeks or even months. It is classified as the worst forest fire in Sweden's modern history.ReutersAn overturned bus lies on a road in Jerusalem. A construction vehicle hit and killed a pedestrian and overturned the bus in an attack that ended when policemen shot dead the Palestinian driver of the digger.ReutersUltra-orthodox Jews pay their respects to Avraham Wales, 29, during his funeral in Jerusalem after he was killed by a Palestinian using a digger to attack a bus.AFPA tank drives through a water obstacle on the course of the Tank Biathlon world championship in Alabino outside MoscowReutersA boy sits on his father's shoulders as they cool down in the hot weather at a fountain in Tokyo where the temperature rose to 36 degrees Celsius (96.8 degrees Fahrenheit)ReutersLos Angeles Angels starting pitcher Garrett Richards is showered with a sports drink after beating the Los Angeles Dodgers at Dodger StadiumReuters