The Chaco Meridian - Big Horn Medicine Wheel, Mount Wilson, Aztec Ruin, Chaco Canyon, Casas Grandes, and the Mimbres Valley are all situated very near the 108th meridian.
Geometric Relationships Along a Line of Ancient Sites Around the World - The Great Pyramid is aligned with Machupicchu, the Nazca lines, Perseopolis, Mohenjo Daro, Petra and Easter Island along a straight line around the center of the Earth, within less than one tenth of one degree of latitude. The Ancient Sumarian city of Ur and the temples at Angkor Wat are within one degree of latitude of this line.
The Ley Hunter Journal - The longest running journal of geomancy and earth mysteries, ancient wisdom, landscapes and sacred sites. Now ceased publication, however their web site is still a comprehensive look at the subject
Vortex Maps - Daniel Shaw asks whether megaliths world-wide were built to the same geometric plan. Sells geometric and visionary maps and books on alignment of sacred sites.
