Most cases of black stools are from eating black foods or iron supplements. The most common condition causing black stools is a bleeding ulcer. Black stools caused by blood indicate a problem in the upper digestive tract. Blood in the stool can be detected through a stool test.
Akashi-Kaikyo Bridge, Japan. The Akashi-Kaikyo Bridge, spanning the Akashi Strait, connects the city of Kobe and Awaji Island in Hyogo Prefecture. It is the world's longest suspension bridge, with its central span measuring 1,991m. Its made up of six lanes with a combined length of 3,911m.
Mackinac Bridge as seen during a Sunday Vesper Cruise in 2009. The Mackinac Bridge is the one of the world's most beautiful bridges and the longest suspension bridge in the Americas, with a total length of 8,614 feet suspended. It is currently the third longest suspension bridge in the world. Much of the beauty comes from the setting at the Straits of Mackinac.