The new book Celebrate 100: Centenarian Secrets to Success in Business and Life shares wise advice provided by hundreds of people who have reached the century mark. Though centenarians interviewed expressed many different ideas about investments, they collectively gave the highest marks to real estate. The reasons they cited included long-term safety of the investment and appreciation of their investment over time.

So, if you’re looking for a sound investment, listen to your elders: Purchasing a home for yourself, land, a rental property, or commercial investment property can be the financial decision of a lifetime.