The Red Pyramid, also called the North Pyramid, is the largest of the three major pyramid

Pyramid

A pyramid is a structure whose outer surfaces are triangular and converge at a single point. The base of a pyramid can be trilateral, quadrilateral, or any polygon shape, meaning that a pyramid has at least three triangular surfaces...

s located at the Dahshur

Dahshur

Dahshur , is a royal necropolis located in the desert on the west bank of the Nile approximately 40 kilometres south of Cairo...

 necropolis

Necropolis

A necropolis is a large cemetery or burial ground, usually including structural tombs. The word comes from the Greek νεκρόπολις - nekropolis, literally meaning "city of the dead"...

. Named for the rusty reddish hue of its stones, it is also the third largest Egyptian pyramid, after those of Khufu and Khafra

Khafra

Khafra — also Khafre — was an Egyptian pharaoh of the Fourth dynasty, who had his capital at Memphis. According to some authors he was the son and successor of Khufu, but it is more commonly accepted that Djedefre was Khufu's successor and Khafra was Djedefre's...

 at Giza. At the time of its completion, it was the tallest man-made structure in the world. It is also believed to be the world's first successful attempt at constructing a "true" smooth-sided pyramid.