The Leaning Tower of Pisa was built on the site of a river estuary. The land under the town has several layers of silt and soft clay. The 15,000-ton tower tilts to the south because the subsoil is too unstable.The light from your computer screen streams at you at almost 186,000 miles per second.
The lights of Las Vegas at night can be seen from outer space.
The longest river in the world, the Nile, is 4,145 miles long.
The longest war between two nations in history, The Hundred Years War between England and France, really lasted for 115 years(1338-1453).
The lowest point that a person can reach on Earth, outside of riding a submarine or going down a mine shaft, is where the Jordan River enters the Dead Sea. It’s 1,290 feet below sea level.
