The setting for Friday's Geo Quiz is Battle Mountain, Nevada. It lies about halfway between Reno, Nevada, and Salt Lake City, Utah.
It's where the World Human Powered Speed Challenge is due to take place in September.
Cyclists pedal streamlined two wheelers that barely look like bicycles.
Scottish cyclist Graeme Obree will be there trying to break the world human-powered land speed record, on his homemade bike.
How fast will he have to go to break the record?
The answer is: 82.8 miles per hour.
Imagine what it's like to ride a bike at that speed! Hear Graeme Obree describe it.
The story you just read is freely available and accessible to everyone because readers like you support The World financially.
Thank you all for helping us reach our goal of 1,000 donors. We couldn’t have done it without your support. Your donation directly supported the critical reporting you rely on, the consistent reporting you believe in, and the deep reporting you want to ensure survives.