dark coaster
n.— «“The Dark Knight,” the ride, is atypical in a number of ways. It is what is known as a “dark coaster,” which means its twists, turns and drops are all indoors.» —“Newest coaster weak on thrills” by Steve Penhollow Journal Gazette (Fort Wayne, Indiana) June 6, 2008. (source: Double-Tongued Dictionary)
Further reading
Mary Beth in Greenville, South Carolina, wonders: Why do we say four-oh-nine for the number 409 instead of four-zero-nine or four-aught-nine? What are the rules for saying either zero or oh or aught or ought to indicate that arithmetical symbol...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
A “dark ride” is a British indoor ride, usually “educational” rather than thrilling, such as the Whisky Heritage Centre (Edinburgh) or the Oxford Story.