Any geographic feature that is in red falls under a miscellaneous category, which means they can be possibly anything (ie: a specific region, a desert, or maybe even a forest).
Beware, this quiz might have some less known answers.
Here are a couple hints that might help you throughout the quiz: 1) If there are many islands grouped together, they are part of an island chain, so make sure to name the island group name (ie: The Galapagos, The Balearic Islands). There are also a couple individual islands on this quiz too, so be weary of that as well. 2) There are numerous small sized answers on this quiz, so zoom in to see them (there are arrows to guide you to the right place). 3) There are also a couple duplicated answers on this quiz (ie: NYC, New York), so try to be specific whenever and wherever possible.