11h 52min, feb 9, 2550 y BC - 17 Great Pyramids of Giza

Description:

2550-2490 BCE
limestone
Egypt

The three main pyramids were built over the span of three generations:
Khufu
Khafre
Menkaure

Each pyramid was part of a large royal mortuary complex including:
Temple
Causeways
Smaller pyramids belonging to queens
Cemetery of smaller tombs (prominent members of court)
Boat pits
Pits with disassembled boats (142 ft)