13. Budapest, Hungary
The cultural significance the architeture of Budapest has in Europe is indeed admirable and noteworthy, however, that isn't what makes Hungary's capital city so hot. No, the vibrant nightlife and youthful culture of the city is how Budapest earned its ranking as one of the sexiest places on Earth. Not only do the young folks in Budapest like to party and get dirty together, but the city also makes sure that they can wash away all of their sins together in the many natural thermal baths. There aren't many things more sensual than getting undressed with a bunch of strangers and enjoying the steam of a natural bath all while being surrounded by some of Europe's most elaborate architeture.