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.