After World War 1 and World War 2, Germany improved greatly and are the second most popular destination for immigrants (which saves the immigrants' lives and gives Germany more workers) and their products are widely known for being good quality and standard compared to other places which make more 'junk' and it doesn't last very long.
People also love the place for its scenery and me personally, but there are probably some other people who will agree with me on the fact that I believe the German language is beautiful. Even though it's traditionally more 'rough and tough' I still think the long words are very pretty and sound amazing when someone speaks them, it's also quite impressive because so many of the words are so long!
Currently, the longest German word is Donaudampfschiffahrtsgesellschaftskapitän which means: Danube steamship company captain.
The other main points that Germany is complemented on are: their beer; their transport (especially cars and trains); their lakes and activities to do with water sports; their bread, their low unemployment rate, festivals/parties and their landmarks and castles. These are all strong points for tourists and the people of Germany as well as all these points (except for the beer, I don't like alcohol) are huge reasons why I love the country!
The three largest cities in Germany are Berlin, Hamburg and Munich, all very widely known, even if you don't know the country very well, I guarantee that you would've at least heard of one of these: