If you only care about inflation, real-estate in desirable locations is also inflation-proof. You can't print more land in San Francisco, London or Hong Kong.
Yeah but you can also have a disaster strike in that place (say, a nuclear accident) that will obliterate your real-estate value. Or general society changes that will make a city much less desirable (see the "rust belt"). Of course, nothing is without risk - so in that sense, it's not surprising that real-estate has risks. But that's what I wanted to underline, nothing is "inflation-proof". There's no guaranteed way to preserve wealth (much less increase it). None.
While there is no bulletproof way to preserve wealth real-estate is one of the most sound one compared to others. A nuclear accident can be insured and general social decline happens over many years or even decades that gives plenty of time to react.
