The British Navy built the £3bn ship in southern England. The vessel is a mammoth 919-foot, 280 meter vessel. It returned for the first time since leaving from the Rosyth dockyard in Scotland back in June,
Defence Secretary Michael Fallon said: "She is Britain's statement to the world: a demonstration of British military power and our commitment to a bigger global role.
"The thousands of people across the U.K. who have played a part in building her and her sister ship, HMS Prince of Wales, should be immensely proud as our future flagship enters Portsmouth."
The ship is expected to have two dozen F-35B aircraft on board by 2023 for the new blood of fighter jets. Queen Elizabeth and the Price of Wales will replace the three smaller carriers which retired during the past decade.
Its flight deck is almost 13,000 square meters (139,930 square feet), big enough to accommodate 470 of London's famous double-decker buses. Its anchors alone are 3.1 metres (over 10 feet) tall and weigh almost as much as one of those buses.
Impressive is an understatement.