I live in a house that is at least 110 years old, built around the time Australia became a federation. The house has been repainted and extended several times, but it still has 3.5-meter-high ceilings, ventilation holes with intricate metal bars, and a lot of original details.
Even though the house is really old, it has been taken care of. There is no mold, the doors are still the same original ones, the fireplaces with decorative tiles are still there, and the wooden fireplace parts are still in good condition. I don't know how they did it, but it was built rather well.
Interesting tidbit: on the ceiling there was something like a Star of David. After asking LLMs what it was, one of them said that when Australia became a country, the Federation Star had only six points, denoting the newly incorporated states, but later a seventh point was added. Gemini told me that the frieze details were typical for the 1901-1910 period, and this helped me date the house.
This took about 10 minutes. Before, it would probably have taken me at least several hours of Googling.
Did you then Google to corroborate that history LLMs told you with actual references? They could well be confidently wrong as they always are.
"Even though the house is really old"
Apart from a brief spell when I was very young and my family lived in a 1950s council house I've never lived in a building as new as that... and I'm 60 and have lived in 11 different properties. But that's the UK and Edinburgh for you...
Edit: Never had any mould problems but then again most of the places I lived had draughty sash windows...