Both are good investment, if you have both then you're lucky.
It is true that land as a property is such a good investment, however, the tax you're going to pay per month or per year is also a pain in the ass if you don't put anything in your land, like raising livestock on it or plants fruits and vegetables to generate more profits. Here in my country, land that are near the roads pitch much higher prices than those who are in a very high places like in farms near the forest.
While Bitcoin, if you bought some and hold for long term, it is all about waiting game until you hit the price where you're contented about selling it, no hassle at all. Though each of them has their own advantages, so either of them is a good investment in short.
Land is a physical asset that is very strong and profitable. If you buy a land now it will give you several times more profit after 10 years because every country area is fixed but population is constantly increasing due to which land is needed to provide their accommodation so the price increases day by day with population growth. On the other hand, the supply of Bitcoin is also a fixed amount, so with the increase in popularity day by day, its price increases a lot because even though its supply is fixed, many new people are attracted to invest here day by day, so the demand for Bitcoin is increasing a lot. So if someone has both these assets then he must be very lucky