King Solomon's Temple and Other Large Buildings

In response to my post titled Memories of an Heroic Age, Daryl D Ritchie makes the following observation:

If I am understanding this hypothesis right, then ancient building techniques with their massive stones would have actually been the same (relatively) as more modern techniques that we are familiar with. We can see over time that smaller stones were used the closer we get to modern time (investigate any ancient and continuously updated castle along the Mediterranean Sea). So, the only thing that has changed is mass? Any couple of guys working together could have set up Stonehenge?

It has always bothered me that King Solomon (1000 BC) was able to set 200 ton blocks on top of each other and build the temple in Jerusalem which was finally destroyed in 70 AD by the Romans who could lever them apart but not able to reuse them and so they lie in a heap still today.

The fact that ancient people could build buildings as large as they did is not necessarily indicative of a loss of knowledge. It may instead be gravity that has increased in strength, making it increasingly difficult to construct large buildings.

King Solomon's Temple

By Johnreve - Own work, Public Domain, Link