Baku, Azerbaijan, on the western shore of the Caspian Sea, lies about 28 m below sea level — the lowest national capital in the world and the largest city located below sea level.
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Baku, Azerbaijan, on the western shore of the Caspian Sea, lies about 28 m below sea level — the lowest national capital in the world and the largest city located below sea level.
The lowest elevation relative to sea level of any sovereign state's capital city.
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Limits Registry. LR-LOWEST-CAPITAL. Lowest national capital city. 2026.