Interestingly, four elements of the periodic table are named after a small town in Sweden called Ytterby:

https://en.wikipedia.org/wiki/Ytterby

Your forgot Nihonium after Japan :-).

It's fairly common for them to be named after places (often where they were discovered). Some other examples are Americium, Berkelium, Californium, Darmstadtium, Dubnium, Europium, Francium, and Germanium.

Check out https://en.wikipedia.org/wiki/List_of_chemical_element_name_... for a full table. There are a bunch named after places (even copper and magnesium), whether continent (Europium), country (Francium), state (Californium), or even UC Berkeley (Berkelium). All told, nearly 30 are named after different places.

I haven't read it yet, but supposedly this book is a fun read with some interesting stories on the discovery of elements: https://www.amazon.com/Periodic-Tales-Cultural-History-Eleme...

Nihonium is also named for a place- Japan (Nihon)

Element 116, Livermorium, is named after Livermore, California (well, technically, it is named after the Lawrence Livermore National Laboratory, which in turn is named after the city). [1]

[1] https://en.wikipedia.org/wiki/Livermorium

Although the naming guidelines for elements definitely allow place-derived names, the guidelines for places on the moon do not. Nevertheless, there is a "Mare Moscoviense / Sea of Moscow" because "Moscow is a state of mind" (lunar maria are usually named after states of mind, etc., e.g. Sea of Tranquility, Sea of Tears).

Mare Moscoviense is one of the very few maria on the far side of the moon: if you've never looked at photos of the far side, you'll be surprised how different it looks from the near side.