The Keepers (Lighthouses)

Rabbit holes to fall down:The Pharos of Alexandria — one of the Seven Wonders, rediscovered on the seafloor in 1994. The Tower of Hercules, A Coruña — the oldest functioning lighthouse in the world. The Stevenson dynasty — over ninety Scottish lighthouses across five generations. Bell Rock Lighthouse — Robert Stevenson's masterwork, built on a submerged reef. Skerryvore Lighthouse — Alan Stevenson, 1844, considered the most beautiful lighthouse ever built. Robert Louis Stevenson — the engineer who became a writer and never quite forgave himself for it. The Fresnel lens (1822) — still the basis of stage lighting today. Life on a rock lighthouse — isolation, the keepers who thrived and the ones who didn't. The Flannan Isles mystery, December 1900 — three keepers vanished, no bodies ever found. Automation — how a two-thousand-year profession ended in a decade. Soviet nuclear lighthouses — RTGs, Arctic coastline, the batteries that went missing after the USSR collapsed. Lightships — manned vessels anchored permanently at the most dangerous stretches of sea. GPS and the redundancy of lighthouses — still active as backup aids.We spot them. You fall.Instagram: @spotrabbitholeScript and research: Claude by Anthropic. Voices: ElevenLabs. Music: Suno. Cover art: Grok. The human touch: Producer Martin.