Geography Basics
Map Projections
The world map hanging in most classrooms makes Greenland look roughly the same size as Africa — in reality, Africa is about 14 times larger.
Continents & Oceans
A basic geography question, "how many oceans are there?", that doesn't actually have one single universally agreed-upon answer.
Time Zones
A single imaginary line in the middle of the Pacific Ocean is the only reason two neighboring places can be experiencing entirely different calendar days at the exact same moment.