1) The Great Barrier Reef in Australia is the largest coral reef system in the world and is visible from space.

2) Johnny Depp is an American actor and producer known for his unique and versatile performances in films such as the "Pirates of the Caribbean" series, "Edward Scissorhands," and "Sweeney Todd: The Demon Barber of Fleet Street." He has received multiple accolades for his work.

3) The concept of human rights advocates for the basic rights and freedoms to which all individuals are entitled, regardless of their nationality, ethnicity, religion, or other characteristics.

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