Hi,
The landmark that can be found in Florida is the "Cape Canaveral Air Force Station." This is where the nation launched its first satellite in 1958. Cape Canaveral is a major spaceport located on the east coast of Florida. It has been the site of numerous historic space missions, including the launches of the Mercury, Gemini, and Apollo programs. Today, it is known as Cape Canaveral Space Launch Complex and is used by NASA, the United States Space Force, and private companies for launching satellites and spacecraft into space.
The other options listed are not located in Florida. The Birmingham Civil Rights National Monument is located in Alabama and commemorates the civil rights movement in Birmingham. The Golden Spike National Historical Park is located in Utah and marks the completion of the First Transcontinental Railroad. The Willis Tower, also known as the Sears Tower, is a skyscraper located in Chicago, Illinois.
In summary, the Cape Canaveral Air Force Station is the landmark in Florida where the nation launched its first satellite in 1958.
I hope that this helped you. :)