Short answers, pulled from the story.
Emperor Akbar established the capital of the Mughal Empire in 1571 at a place called Sikri. This decision followed the birth of his son Jahangir in the village of Sikri during 1569.
Akbar abandoned the city in 1585 when he went to fight a campaign in Punjab. Complete abandonment occurred by 1610 due to water supply failure or loss of interest.
The city was built massively using red sandstone with influences from Timurid forms and styles. A 40 meter high ridge organizes the ground structures into a rhombus shape while Buland Darwaza stands 40 meters high as an organizing element for the entire city.
The saint Sheikh Salim Chishti had predicted the arrival of Emperor Akbar's son Jahangir which prompted Akbar to build a religious compound there. The Tomb of Salim Chishti uses white marble encasement with mother-of-pearl mosaic under an ornate wooden canopy.
Fatehpur Sikri received World Heritage Site status in 1986 due to its historical importance as the Mughal capital. Outstanding architecture featuring red sandstone structures contributed significantly to this global designation.