I doubt there is such a place. To sell land for cryptocurrency, it means having the legal matters settled (somehow). It usually means involving lawyers, paying taxes, etc., which rules out the direct usage of cryptocurrencies as means of payment.

You can simplify the whole process, for example, by first selling your land for fiat money, and then using the money to buy cryptocurrencies.

Also, it is possible that in some foreseeable future, there will be a real-life solution for representing material objects on the blockchain. When that time comes, you will indeed be able to swap material objects for cryptocurrencies just like that, without too much complications. I think we are still decades away from that possibility.