1) The world's oldest known recipe is for beer and is over 4,000 years old.

2) The Iguazu Falls, located on the border between Argentina and Brazil, is a majestic waterfall system consisting of numerous cascades and islets. It is a UNESCO World Heritage site and one of the most impressive natural wonders in the world, attracting millions of visitors each year.

3) The Amazon rainforest produces more than 20% of the world's oxygen.

4) The first bank in the world, Banca Monte dei Paschi di Siena, was established in Italy in 1472 and is still in operation today.