Historical version 2 of Kensington Gardens (view current version)
Technically separate, Kensington Gardens is the western end of Hyde Park. You may walk between Kensington Gardens and Hyde Park without realising it. It's home to Kensington Palace (former home of Princess Diana) and the famous Round Pond.
To the west of Kensington Gardens (down Notting Hill Gate and then Holland Park Avenue) lies Holland Park.