Mohamed Sabet alerted me to the existence of a pyramid in Holland. He has put a lot of effort into studying it - read his paper - it has lots of detail on measurements and alignments - the alignment with Paris is worth further investigation...

"Unlike its ancient Egyptian counterparts, the Austerlitz pyramid is but a mere 200 years old. It was completed on 12 October 1804 by a French general, Auguste Marmont, who wanted to create a lasting monument in honour of Napoleon Bonaparte and - above all - himself. To make it even more spectacular, he placed an obelisk on top of the pyramid. The entire structure is approximately 50 metres high and stands on a hill of about the same height, giving a spectacular view of the surrounding area."

....I have just realised that there is not an online database of pyramids, so I bought an appropriate domain name and hopefully, one day, will make one....