Smartest dogs: 1) Scottish border collie; 2) Poodle; 3) Golden retriever.

As of 2010, the longest suspension bridge in the world is the Akashi Kaikyo Bridge in Kobe, Japan. Opened in 1998, it spans an amazing 1991 metres (6529 feet).

The Boston University Bridge (on Commonwealth Avenue, Boston, Massachusetts) is one of the few places in the world where a boat can sail under a train driving under a car driving under an airplane.

AMAZING FACTS