1) The Dow Jones Industrial Average (DJIA) is a stock market index that tracks the performance of 30 large, publicly owned companies in the United States.

2) The Great Wall of China is a UNESCO World Heritage site and one of the most iconic man-made structures in the world. It stretches over 21,196 kilometers (13,171 miles) and was constructed to protect the Chinese empire from invasions during ancient times.

3) The corpse flower, or titan arum, is known for its unpleasant smell, often compared to that of rotting flesh.

4) Insurance policies often contain exclusions, which are specific events or circumstances that are not covered by the policy.