Where would one find the Sea of Tranquility?

The Sea of Tranquility, known as "Mare Tranquillitatis," is located on the Moon. It is a large, flat plain formed by ancient volcanic activity and is one of the most prominent lunar maria. This area gained fame as the landing site for Apollo 11 in 1969, where astronauts Neil Armstrong and Buzz Aldrin became the first humans to walk on the Moon.