The palace's head gardener and a gardener who knew Diana from her frequent visits to the spot, usually known as the Sunken Garden, will explain the design and point out some of the princess's favorite plants.
He said her enduring appeal was her "tragic destiny" which put her among stars whose early deaths have immortalised them, such as American actresses Grace Kelly or Marilyn Monroe. But why did the death of a young aristocrat living a life of royal privilege affect so manypeople not just in Britain but all over the world?
"He was there for us", Prince Harry told the BBC, of the heir to the throne.
Morton is convinced that that is something Diana intended.
Included in the special, Prince William, Duke of Cambridge, says: "Part of the reason why HARRY and I want to do this is because we feel we owe it to her".
'It was a very alien environment and I couldn't understand what everyone wanted to cry as they did when they didn't know our mother, ' William candidly revealed.
Diana's extra-marital relationship with Major James Hewitt didn't go well either with the public.
Ms Marks said she still felt the pain of her friend's passing, 20 years after the horrific accident that shocked the world. "I massaged her heart and a few seconds later she started breathing again", Gourmelon said.
"Princess Diana's life and the circumstances of her death still interest the public, that's why we wanted to be the first to run a large story", 24 Chasa editor-in-chief Borislav Zumbulev told AFP.
"There's not a day that William and I don't wish that she was still around".
"It speaks volumes for the people of Australia that despite the passage of time you've still both recognised and remembered me", Diana told the dinner guests.
"On the steps of St. Paul's, it's a scene straight from a Victorian picture book", begins the narrator, who goes on to describe Prince Charles as "the hero of the hour" who "beneath the pomp and titles" is a "nice, rather nervous young man on the most tender and important journey of his life". She is able to inflict more damage on the carefully cultivated royal brand than any headline about William being workshy or Prince Charles writing letters to government ministers. But I found out later she had died in hospital.
Another card attached to a bouquet of flowers, signed by royal fans Lynda and Victoria, reads: "You were a attractive person inside and out and our country was so very lucky to have you as our Princess. There's that gnawing fear and worry", he said.
Following Princess Diana's passing, the royal family stayed at Balmoral in order to stay out of the public eye in London. "Back then there were no smartphones and things like that, so you couldn't get your news". TV shows are airing Diana's documentaries.
And while Diana was portrayed as a social butterfly in the press, Darren revealed a quieter side to her, saying: "She would never entertain at home at night".
Princess Diana continues to fascinate 20 years after her death
As a royal photographer for many years, he travelled with the Royal Family and saw first-hand her tireless devotion to charity. She has three children, Laura, Alexander and Eleanor. "Twenty years have passed since she died but I'll never forget her".
US Open: Roger Federer says 3rd major of year would be surreal
I have beaten them in Masters events ", Zverev said. "I think it's a good achievement after three years having some troubles". A bigger point: At this year's Open, there's a tough road for these two to meet in the semifinals (five victories each).
5000 sheltered in Houston, total number to hit 30000
Shutdowns extended across the coast, including Exxon Mobil Corp's facility in Baytown, the nation's second largest refinery . We're just stuck here until the water recedes. "If you're in a stressful situation and you need help, you call us for help".