The loudest insect in the world is the male cicadas, which are like crickets. When they rub their abdomens, the sound made can be heard from 1300 feet.

Leonardo Da Vinci never signed or dated his most famous painting, the Mona Lisa.

The largest ocean liners pay a $250,000 toll for each trip through the Panama Canal. The canal generates fully one-third of Panama's entire economy.

AMAZING FACTS