Argentina dwarfs Europe: about 2,782,703 km² km² against 10,180,000 km² km². At true size Argentina is about 3.7× larger — the whole of Europe fits into Argentina roughly 3 times.
The old Mercator map treated both about equally (1.5× vs 1× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Argentina fits 3× into Europe.