Dig Through the Earth
Flip your coordinates through the centre of the planet and find out who lives directly beneath your feet — 12,742 km straight down.
Start from
Every lookup runs in this tab against map files the page downloads once. Your coordinates are never sent anywhere.
Drag the globe to spin it yourself.
How it works
An antipode is the simplest calculation on this page: negate the latitude, swing the longitude half a turn, done. Everything after that is looking the answer up. The globe is an orthographic projection of Natural Earth's vector coastlines drawn on a canvas — rotating the projection is genuinely rotating the Earth, and the shadow across it is the real day/night terminator for this minute.
Which country you land in is a point-in-polygon test against Natural Earth's 1:50m outlines; the nearest town and nearest major city come from 49,000 GeoNames places; the local time comes from the IANA time zone boundaries. All three files are downloaded once and queried in your browser, so there is no geocoding service in the loop — nothing to rate-limit, and nothing that learns where you are.
Coastlines are simplified, so a result within a few kilometres of a shore is a coin flip. Populations are GeoNames estimates. About 71% of the planet is ocean and land opposite land is rarer still — if you keep hitting water, that is the planet's fault, not the page's.