20:17:40 UTC, 20 July 1969. Spoken by Neil Armstrong to an enthralled worldwide audience of tens of millions who watched and listened, live, moments after Apollo 11's landing on the Moon, were the words:"Houston, Tranquility Base here. The Eagle has landed." It was a culmination of a dream that dated back millennia. Landing Neil Armstrong and Buzz Aldrin on the Moon had cost the lives of three astronauts in the Apollo 1 (AS-204) fire, as well as something approaching $125 billion (in 2009 dollars) of American treasure. It stands as the landmark technical achievement in the 6,000-year recorded history of the human race. This photo scrapbook shows images - some famous, others unknown - that chronicle the epic jouorney of Buzz Aldrin, Neil Armstrong, and Michael Collins aboard Apollo 11 forty years ago.