For example, it was previously thought that the ... many kinds of megalithic tomb—were placed from the outside of the monument by sliding them on foundation ramps. But the study revealed that ...

Stonehenge may be the most famous example of the “huge stones arranged ... “Flagstones is an unusual monument,” explained Susan Greaney, a specialist in Neolithic and Bronze Age monuments ...

America’s public lands, from its majestic national parks to its vast national forests, are at the heart of the country’s identity. They cover  more than a quarter  of the ...

The Maya and Toltec vision of the world and the universe is revealed in their stone monuments and artistic works. The fusion of Mayan construction techniques with new elements from central Mexico make ...