Washington National Cathedral - Foundation stone laid by FREEMASONS , beneath the alter.
Look at the layout , Sun or Dog Star alignment will most likely be found. Main hall looks to point EAST to the rising sun.
Laying the Foundation StoneAs the cathedral choir sang, the foundation stone was slowly lowered to its final resting place beneath the altar. A procession left the platform consisting of the Bishop Henry Yates Satterlee, the Canons of the Cathedral, the architect bearing the Cathedral trowel, and Lemuel Towers, Jr., Master of Potomac Lodge No. 5, FAAM accompanied by three Brothers bearing the George Washington gavel. In the great pit dug for the foundation, Bishop Satterlee laid the mortar beneath the stone and struck it three times with the Washington gavel. After the procession returned to the platform, President and Brother Theodore Roosevelt delivered an address.(2) …. Bush Sr. spoke at its completion
http://www. masonicworld.com/education/files/apr02/include/cornerstones.htm