Can you spot the difference?

One house seems to be different in this picture. Can you spot which one it is?
Try not to get too cross-eyed while doing it and good luck! ❤️️ 

Fun fact: Did you know that sensors can be used to detect an anomaly that would be difficult or impossible for the human eye to spot? By using Caverion Intelligence AI solution in nuclear power plants, we can detect and mitigate anomalies before they escalate into real failures.