1) The tongue of a blue whale is so big that about 50 people could stand on it.

2) The highest-grossing film of all time is "Avengers: Endgame," which has earned over $2.79 billion at the global box office.

3) The Olympic Games, originating in ancient Greece, were revived in 1896 and are now held every four years, bringing together athletes from around the world.

4) The Scottish Highlands, located in the northern part of Scotland, are characterized by rugged landscapes, mountains, and lochs (lakes). They are known for their natural beauty, rich history, and cultural heritage, attracting outdoor enthusiasts and those seeking tranquility in nature.