The bodies in charge of the EU governance, probably. https://en.wikipedia.org/wiki/Institutions_of_the_European_U...

Commision [executive], Council (of Ministers/of the EU) [legislative] and Parliament [legislative] are the three most significant in terms of doing/looking like what any sovereign country government would.

Not sure, Europe isn't a country.

There's the EU, but members of the EU have their own governments.

I can't figure out why people keep getting confused. Turkey and Russia are in Europe, but not in the EU, for instance.