The monarchies of Europe, 1913 edition
After viewing this post, I thought it would be interesting to see which European countries were monarchies 100 years ago. As you can see, it’s a drastically different picture - the long-standing French and Swiss Republics are immediately apparent, as is the then-freshly founded republican state of Portugal, just 3 years out of its revolution. The particularly eagle-eyed will also notice San Marino, arguably the longest-standing republic in the world. Of course, 4 of the great empires in this map (the German, Austro-Hungarian, Russian, and Ottoman Empires) would collapse within just the next seven years, so the situation changed much faster than a century.
The lighter shaded regions are colonial possessions (Algeria was considered a département and politically integrated territory of France, not a protectorate).
Credit for the map template goes to fenn-o-manic.