1) The Paralympic Games, held immediately after the Olympic Games, showcase the athletic abilities of individuals with disabilities and promote inclusivity in sports.

2) The NBA (National Basketball Association) is widely regarded as one of the most popular and competitive professional basketball leagues in the world.

3) The word "piano" contains three vowels: I, A, and O.

4) The world's tallest waterfall is Angel Falls in Venezuela, with a height of about 3,212 feet (979 meters).