It was crafted from 2,300 tons of white marble and stands 25 meters (82 feet) high.
Elsewhere, on the northwest side of The Mall in central London is the statue of King George VI.
Designed by William McMillan, the bronze monument displays the king dressed in his naval uniform.
Another impressive memorial to be found in Trafalgar Square is that of King George IV.
The monument was originally intended to be placed outside of Buckingham Palace.
However, following his death, it was temporarily erected in Trafalgar Square where it remains to this day.
The column itself is hollow, with 168 steps inside it that lead to a viewing platform.
Placing a statue of the late Princess Diana in this historic city will be a memorable addition.
