Sudan is also known as the third largest country in Africa.
Sudan is divided by the Nile River into eastern and western halves. Sudan is known to be the home to numerous ancient civilisations according to history, namely the Kingdom of Kush, Kerma, Nobatia, Alodia, Makuria, and Meroë.
Travellers will be in awe as there are about 100 pyramids in this location.
South Sudan, which gained independence from Sudan in 2011, descended into civil war after Kiir fired Machar as vice president in 2013.
More than 10,000 people have been killed and some 2 million displaced, many of whom fled to neighbouring countries.
Kiir reappointed Machar earlier this year under a peace deal agreed in August.
But Machar left Juba following the outbreak of violence earlier this month and Kiir replaced him on Monday with General Taban Deng Gai, a former chief opposition negotiator who has broken ranks with Machar.
Most of these kingdoms owe their development for their location in the Nile River.