The information posted about this fountain was written so perfect, I could not have said it any better. With that said, I will quote how this fountain was built.
"The design aims to reflect Diana's life, water flows from the highest point in two directions as it cascades, swirls and bubbles before meeting in a calm pool at the bottom. The water is constantly being refreshed and is drawn from London's water table. The Memorial also symbolizes Diana's quality and openness. There are three bridges where you can cross the water and go right to the heart of the fountain." RoyalParks.org.
I hope you can understand why this fountain is so meaningful and absolutely worth visiting in my opinion. Knowing the beautiful person Diana was to the world, makes this an important and historical place to see. My favorite part about the this memorial, is the thought, and meaning behind it. They truly made the fountain to symbolize the person she was and THAT is worth visiting.