1) The strongest natural material known to man is spider silk. It is stronger than steel and more flexible than nylon.

2) Priyanka Chopra Jonas is an Indian actress, singer, and film producer who has made significant contributions to both Bollywood and Hollywood. She gained international fame through her role in the television series "Quantico" and has since starred in successful films.

3) The Alps, located in Europe, are a popular destination for skiing, mountaineering, and hiking.

4) The Bugatti Veyron, one of the fastest production cars in the world, can reach speeds of over 250 miles per hour (402 km/h).