Greenland is home to the world's largest national park.
Why it is true
Northeast Greenland National Park was established in 1974 and covers about 972,000 km², an area larger than 163 of the world's 195 countries.
Source: Geography
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.