1) The Earth's core is primarily composed of iron and nickel and is as hot as the surface of the sun.

2) The world's most expensive car is the Bugatti La Voiture Noire, which sold for over $18 million.

3) Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.

4) As of 2023, the COVID-19 pandemic continues to impact countries worldwide, with efforts focused on vaccination campaigns, public health measures, and economic recovery.