Riga is the capital city of which European country?

primate city? Likely "primary" was meant.

One of the prettiest cities I've ever visited. At least 20 times. The population numbers ain't as huge as of 2023 though. Lithuania's Vilnius is rapidly growing up.

YoungAtHeart, humans are primates 😂

Other options are Belgrade is capital of Serbia Helsinki is capital of Finland Warsaw is capital of Poland