If you really thought about it for any length of time you’d realize borders are a strange idea. They arbitrarily divide the land up between various countries for no reason.
Most of the time this isn’t a problem, except when one country decides it wants to grab a slice of another country’s land.
But the ownership of Lake Constance is particularly confusing…
This video shows Tom Scott trying to explain who owns Lake Constance, which is technically a condominium in Europe.
The lake belongs to Germany, Switzerland, and Austria. But no one quite knows where the borders lie, and who owns what part of this body of water.