Listen to this article: Paris has an estimated 200 miles or more of underground tunnels. This network is not only the catacombs, but limestone mines. Many remain unmapped, so police do regular searches to map as well as look for illegal activity. On one search, they came across something different… a newly-built, secret clubhouse.
Listen to this article: Many people know Isaac Newton to be a mathematician, astronomer, and physicist. More still know Isaac Newton to have theorized about gravity, but rarely discussed is his interest in alchemy. The world was still being explored and things like alchemy were a way of discovering more.