Glossary · The ocean
Mariana Trench
A crescent-shaped trench in the western Pacific Ocean, east of the Mariana Islands. It holds the deepest known point on Earth, the Challenger Deep.
Where it comes up
It is part of how Icillion works: every answer you give moves the submarine, and this is one of the things you pass or score on the way down. How to play
Nearby in the glossary
How deep does your knowledge go?
Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.
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