1) The first bank in the world, Banca Monte dei Paschi di Siena, was established in Italy in 1472 and is still in operation today.

2) The construction of the Great Wall of China began in the 7th century BC and was completed over several centuries, spanning thousands of miles.

3) Bats are the only mammals capable of sustained flight.

4) The average person walks the equivalent of three times around the world in a lifetime.