A Ferris wheel was an amusement ride which consisted of an upright rotating wheel with seats suspended freely around the rim so that they would remain right side up during the revolution. (TV: The Bounty Hunter [+]Loading...["The Bounty Hunter (TV story)"])
Hedgewick's World of Wonders used to contain a Ferris wheel. (TV: Nightmare in Silver) The London Eye was a giant Ferris wheel. (TV: Rose)
A bomb was attached to a Ferris wheel which K9 and Starkey disarmed. (TV: The Bounty Hunter)