Is this Salisbury Plain?

No, but this is Stonehenge.

The visitors show how tall Stonehenge is.

Getting closer...

Outside looking in.

This is a view from the inside.

Here are more views from the inside.

This altar stone was dedicated on July 4, 1918. Stonehenge was completed nearly eleven years later.

The thirteen names of the World War I dead  are mounted on interior stones.

Samuel Hill died two years after finishing Stonehenge and was buried nearby.