Prince Charles and Camilla arrived at the Al-Azhar Park in Cairo to begin their five-day tour of Egypt.
The Duchess of Cornwall was given flowers by students from British schools after her arrival at Al-Azhar Park.
A small statue of Princess Meritaten, the sister of Tutankhamen, was one of various gifts given.
Prince Charles is dwarfed by an exhibit at the Egyptian Museum, which houses more than 100,000 relics.
Prince Charles and Camilla were given a tour of the Al-Azhar Mosque by Grand Imam Sheikh Mohammed Sayed Tantawi.
The visit to the mosque was on the second day of a 12-day royal tour of Egypt, Saudi Arabia and India.
The Duchess of Cornwall wore a light blue scarf, and a chiffon tunic created by the designers of her wedding dress.
For Prince Charles, the visit to Cairo represented a return to Egypt for the first time since 1995.
Prince Charles and Camilla in conversation inside the mosque, a building which dates from 970AD.