The city block that belongs to two countries and neither wants to fix it

A single city block sits split between two countries due to a centuries-old surveying error neither government has bothered to formally correct, since fixing it would require a treaty renegotiation over a strip of land nobody actually disputes using day to day.

Residents on the block pay taxes to whichever country technically owns their side of a line invisible on the ground itself, marked only on old survey documents most residents have never seen. Mail, utilities, and emergency services all follow the invisible line without much friction, decades on.

Both governments apparently agree the fix isn't worth the paperwork. The error has effectively become permanent simply by being too boring to bother correcting.

Part of the deeper dive: The Collection of True Stories Too Strange to Make Up.