In terms of sheer convenience, no continent can match Europe's heterogeneity. With so many countries, cultures, languages and cuisines crammed into a relatively small area, you can spend a week in Europe and discover something completely different every day.
All this variety is likely to make your head spin, but the secret to living Europe at its best is to take it a little at a time. The "Old World" has stood for centuries and will still be there waiting for you every time you decide to explore another slice.