Listener Mark Isaak heard that the spot on the earth from which you can see the most land is the summit of Mount Kilimanjaro. But that the summit of Mount Diablo comes in second. Turns out, this is a widely-circulated factoid that goes back centuries. Is it true?

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Reported by Asal Ehsanipour. Bay Curious is made by Olivia Allen-Price, Katrina Schwartz, Jessica Placzek, Katie McMurran and Rob Speight. Additional support from Julie Caine, Paul Lancour, Kyana Moghadam, Suzie Racho, Carly Severn, Bianca Hernandez, Ethan Lindsey and Don Clyde.