Did you know that Antoni Gaudí was the mastermind behind the Sagrada Familia in Barcelona, Spain? This iconic cathedral has been under construction since 1882 and is still not completed. Another famous architect, Frank Gehry, is known for designing the Guggenheim Museum in Bilbao, Spain, and the Walt Disney Concert Hall in Los Angeles. The world's tallest building, the Burj Khalifa in Dubai, was designed by Skidmore, Owings & Merrill LLP. It stands at a staggering 2,717 feet tall and has 163 floors. Another impressive architectural feat is the Sydney Opera House in Australia, which was designed by Danish architect Jørn Utzon. Its unique sail-like design has become a symbol of the city. The Hoover Dam, located on the border of Arizona and Nevada, was designed by John L. Savage and built during the Great Depression. It provides hydroelectric power to millions of homes in the southwestern United States. Another notable civil engineering project is the Panama Canal, which was designed by Ferdinand de Lesseps and later completed by the United States. This vital waterway connects the Atlantic and Pacific Oceans, reducing travel time for ships and boosting international trade. Architects and civil engineers play a crucial role in shaping our world through the design and construction of iconic buildings and infrastructure projects.