Is land a good investment?

We've wanted to buy a second home with the hope of renting it, but financially that is out of reach right now. So, we're considering buying land and just waiting to build until we have the finances to do so. I know it wouldn't give us an income like a rental, but it's also something we can afford and would hopefully gain value over time. Worst case, we would sell it in the future. So, is land a good investment?