But the mysterious mixture doesn't come out green. The Chicago River was dyed green for St. Patrick's Day Saturday in a fan favorite event. This video shows how it all happened - in under 30 seconds.

Price: £1.7 million (US$1.974 million) On the car-free London island of Wheatleys Eyot, this three-bedroom house overlooks the River Thames on one side and a tranquil creek on the other.

Calling bull on bull shark lore When the Ohio River finally meets with the Mississippi, it's then still about 1,000 miles from the Gulf of Mexico. In fact, there have only been two semi-confirmed ...