Architecture and Buildings 1933 A photo of Central Park during the Great Depression (New York, 1933)www.rarehistoricalphotos.com 1943 In 1943, Operation Gomorrah began: British and Canadian aeroplanes bombed Hamburg by night, and American planes bombed the city by day. By the end of the operation in November, 9,000 tons of explosives had killed more than 30,000 people and destroyed 280,000 buildings.www.rarehistoricalphotos.comgraphs 1955 What is now the Las Vegas strip, 1955www.rarehistoricalphotos.com 1973 Motorola engineer John Mitchell with his phone on the streets of New York. Mitchell helped develop the design for the first mobile phone. 1973.www.rarehistoricalphotos.com 1970- 2020 Abu Dabi of the U.A.E. In just 50 years 1970 -2020www.rarehistoricalphotos.com