Looking for a book about irl “easter eggs” around the world.

A book about unnecessary (sometimes hidden) interesting facts. It can be art, architecture, science, invention, you name it.

Preferably a book with different random facts/easter eggs.

Example: I'm from Sweden and we have a statue of a king, pointing his finger in one direction, not everyone knows, but he is pointing east, towards Russia. (He waged war against Russia).

Thanks.