'Murrica!
I saw it noted that there are 22 stable liberal democracies in the world (that is, continuously democratically governed, with civil liberties guaranteed, since 1950). In no particular order, these are Austria, Germany(/West Germany), Italy, France, Switzerland, Belgium, the Netherlands, Luxembourg, Denmark, Norway, Sweden, Finland, Iceland, the United Kingdom, the Republic of Ireland, Canada, Australia, New Zealand, Israel, Japan, Costa Rica, and the United States of America.
One interesting thing to note about this list is that only two use the US model: the US itself, and Costa Rica. All the others use a parliamentary confidence system of some sort.
At this point, with all the electoral and other political fuckery going on in the US, and the effective eradication of various civil liberties (4th Amendment anyone?), I'm not sure if the US belongs on that list any longer.
What I find particularly amusing about it is that half of the countries on that list are monarchies.