I’m a sucker for Wikipedia articles like this one listing off a number of extreme points on Earth. Fascinating to think about the difference between the highest peak above sea level (Mount Everest), as opposed to point farthest from the center of the planet:
The point farthest from the Earth’s center is the summit of Chimborazo in Ecuador, at 6,384.4 kilometres (3,967.1 mi) from the center of the earth (the peak’s elevation in relation to sea level is 6,263.47 m (20,549 ft)). This is because the Earth is an oblate spheroid rather than a perfect sphere: it is wider at the equator and narrower between the poles. Therefore, the summit of Chimborazo, which is near the equator, is farther away from the center of the Earth than the summit of Mount Everest (the summit of Mount Everest is 2,168 m (7,112.9 feet) closer, at 6,382.3 km (3,965.8 miles) to the Earth’s center).