How is intellectual property a form of property? Is it appropriate for governments to protect intellectual property just like any other form of property?

Does the value of a piece of land come only come from the profits it can generate? What are the factors that make land valuable? Does it have an inherent value that has nothing to do with profit?

If you were to find a prototype of a new mobile, that was revolutionary, lying on a public bench, what would you have done with it? What would the consequences be?