The idea of land ownership is as mythical as Thor's hammer. You don't own land - you own a right to do certain things on that land to the exclusion of others. Only sovereignty gives actual ownership of land - transferring it to another jurisdiction, setting up your own laws, destroying said land and doing whatever the fuck one would do when one is literally "law onto oneself".

Also - money is no longer representative of a thing you can hold. Money is a share of wealth of a nation, which includes trust, culture, people, land and buildings.