1) The Dead Sea, bordered by Jordan to the east and Israel and Palestine to the west, is a hypersaline lake known for its high salt concentration. It is the lowest point on Earth's land surface and provides unique buoyancy, attracting visitors who enjoy floating in its waters.

2) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.

3) The eye of a cyclone is a region of calm, relatively clear skies and light winds at the center of the storm.

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