An amusement park was a location for entertainment. Some amusement parks were theme parks, centred around a theme.
The Parakon Corporation started a branch on Earth during the 20th century, running the Space World amusement park. (AUDIO: The Paradise of Death [+]Barry Letts, BBC Audio Dramas (BBC Radio 5, 1993).)
The Sixth Doctor, Peri and Frobisher tried to hide themselves from the red robots at an amusement park at Antarctopolis. (COMIC: Façades [+]Scott & David Tipton, Prisoners of Time (IDW Publishing, 2013).)
The Eleventh Doctor took Clara Oswald, Angie, and Artie Maitland to Hedgewick's World of Wonders, the biggest and best amusement park ever built, which took up the entire surface of a small planet. (TV: Nightmare in Silver [+]Neil Gaiman, Doctor Who series 7 (BBC One, 2013).)
To celebrate the holidays, the Thirteenth Doctor and Team TARDIS sought to visit an amusement park, based off their previous experience. A discussion about their previous visit led them to realise that they all had different memories of the trip, setting them up to discover Krampus' schemes. (COMIC: Holiday Special [+]Jody Houser, Doctor Who: The Thirteenth Doctor (Titan Comics, 2019).)