1) The Serengeti National Park, located in Tanzania and extending into Kenya, is renowned for its vast savannahs, diverse wildlife, and the annual wildebeest migration. It is a UNESCO World Heritage site and a popular destination for safari enthusiasts and nature lovers.

2) Orchids are one of the largest families of flowering plants, with over 25,000 species.

3) The International Cricket Council (ICC) is the governing body for the sport of cricket and oversees international tournaments and rankings.

4) The development of the World Wide Web Consortium (W3C) and web standards has ensured interoperability and compatibility across different web browsers and devices.