Sacred Relics (Topkapı Palace)
The various relics of Muhammad, his followers, and other items purportedly associated with Muhammad were brought to Topkapı Palace in Istanbul, where they remain to this day.
History of Istanbul
"Foundations" is vakifs in Turkish. The Grand Bazaar (1455) and Topkapı Palace (1459) were erected in the years following the Turkish conquest. Religious foundations were endowed to fund the building of mosques such as the Fatih (1463) and their associated schools and public baths. The city had to be repopulated by a mixture of force and encouragement.