Mystery corridor is found in Egypt's Great Pyramid

The Killers of Custer:

Fascinating photographs show fierce Cheyenne Indians

Images of the Cheyenne show a young child in traditional headdress as well as older warriors posing with weapons of war – both before and after the momentous Battle of the Little Bighorn in 1876 (pictured left is an axe-wielding warrior in 1877, while top right is a delegation to the White House in 1863). The Cheyenne are thought to have originated in the Great Plains, an area of North America which includes the entirety of the states of Kansas, Nebraska, South Dakota and North Dakota as well as parts of Colorado, Montana, New Mexico, Oklahoma, Texas and Wyoming. Formed from the combination of two tribes, the Só'taeo'o and the Tsétsêhéstâhese, the Cheyenne have a checkered history with the United States government, dating back to 1825 and the first treaty between the two. The initial amity soon ended, and after half a century of violent clashes the hostility culminated in the Battle of the Little Bighorn in Montana - which led to the US Cavalry's defeat and the death of General George Armstrong Custer (pictured bottom right at the front right of a group of soldiers).