The equator is an imaginary line at zero degrees latitude that wraps around the center of Earth, dividing the planet into Northern and Southern Hemispheres. There are 13 countries located along this 24,901-mile-long boundary — seven in Africa, three in Asia, and three in South America. All of these countries are known for their similar climates, experiencing year-round hot and humid weather with little seasonal variation. Despite similar weather, each of these nations has its own unique history, geography, and culture. Here are eight fascinating facts you might not know about countries along the equator.