Last month, I returned to  St. Peter's Basilica in Vatican City near Rome, Italy. On September 3, 2019 I posted a blog entry about find...

Neuschwanstein castle is an iconic building that is one of the most visited tourist spots in Germany. It is located in Swabia, Bavaria, Germ...

This opal fossil is UV fluorescent. The original aragonite internal shell dissolved and was replaced by opal in this belemnite fossil. It e...