Somewhere in the South Pacific, at 48°52.6′S 123°23.6′W, lies the point in the world's oceans that is furthest from any coastline. It is called Point Nemo — after Jules Verne's submarine captain, whose Latin name means "no one" — and no one is exactly who lives there.
Point Nemo sits about 2,688 km from the nearest land in every direction. The three closest specks are Ducie Island (an uninhabited atoll in the Pitcairn group), Motu Nui (the islet off Easter Island famous from the birdman cult), and Maher Island off Antarctica. The location was first calculated in 1992 by survey engineer Hrvoje Lukatela, who realised the question could be answered precisely with satellite-era geodesy.
Its remoteness produces a famous piece of trivia: when the International Space Station passes overhead at ~420 km altitude, the astronauts aboard are far closer to Point Nemo than any human on the surface of the Earth.
That emptiness makes the surrounding stretch of the South Pacific the safest place on the planet to drop something enormous from orbit. Space agencies have used this "South Pacific Ocean Uninhabited Area" for decades as a controlled re-entry target. Hundreds of retired spacecraft — resupply freighters, cargo vehicles, and most famously the 120-tonne Russian space station Mir in 2001 — have been deliberately deorbited into these waters. The International Space Station itself is slated to join them when it retires in the 2030s.
When our system computed nearest-land data for the world's cities, the reverse-geocoder around this region returned features actually named "Spaceship cemetery" and "Point Nemo" in OpenStreetMap — mappers have charted the graveyard even though there is nothing to see but water.
The same geometry that makes Point Nemo remote makes it the antipodal destination for a big slice of the northern hemisphere. The empty quarter of the South Pacific is opposite the populous heart of western Russia and eastern Europe. Moscow's antipode falls in this region — our measurement puts it about 2,000 km from the nearest charted island, in the same lonely waters as the spacecraft graveyard. Tashkent and Almaty land nearby.
If your city's antipode looks like a featureless blue square on the map, it may be keeping company with sunken space stations. Look yours up — Antigea will tell you honestly when there is nothing there, and how far the nearest anything is.