Roller coaster
From Tardis Wiki, the free Doctor Who reference
A roller coaster was, according to Peri a thrill ride. When Erimem was feeling particularly melancholy following wholly unpleasant events in the Himalayas during the time of the British Raj, Peri offered to take her friend to ride some roller coasters the next time the TARDIS arrived on Earth. (AUDIO: Three's a Crowd)
