In Europe, the buildings that are 100 years old didn't collapse 60 years ago. This is a perspicacious observation. I bet a lot of European buildings that were

In Europe, the buildings that are 100 years old didn't collapse 60 years ago. This is a perspicacious observation. I bet a lot of European buildings that were built 100 years ago had some issues when they were 20 years old, though. The oldest building in my city (capital of one of the largest states in the US) was constructed in 1728, and the oldest street originated in the mid-1600s and is still paved with cobblestones.