The Red Pyramid, also called the North Pyramid, is the largest of the pyramids located at the Dahshur necropolis in Cairo, Egypt. Named for the rusty reddish hue of its red limestone stones, it is also the third largest Egyptian pyramid, after those of Khufu and Khafre at Giza. It is also believed to be Egypt's first successful attempt at constructing a "true" smooth-sided pyramid. Local residents refer to the Red Pyramid as el-heram el-watwaat, meaning the Bat Pyramid.
Red Pyramid
Entry to the pyramid
Detail of the massive corbel-vaulted ceiling of the main burial chamber
Pyramidion reconstructed from fragments found at the site
A pyramid is a structure whose visible surfaces are triangular and converge to a point at the top, making the shape roughly a pyramid in the geometric sense. The base of a pyramid can be of any polygon shape, such as trilateral or quadrilateral
Pyramid of Khafre, Egypt, built c. 2600 BC
Prasat Thom temple at Koh Ker, Cambodia
Chogha Zanbil is an ancient Elamite complex in the Khuzestan province of Iran.
The pyramids of the Giza necropolis, as seen from the air