Relics of Muhammad
Traditionally, Islam has had a rich history of the veneration of relics, especially of those attributed to the Islamic prophet Muhammad. There exists historical evidence that some of the earliest Muslims practiced the veneration of relics, and the practice continued to remain popular in many parts of the Sunni Islamic world until the eighteenth-century, when the reform movements of Salafism and Wahhabism began to staunchly condemn such practices due to their linking it with the sin of "shirk" (idolatry). As a result of the influence of these perspectives, some contemporary Muslims influenced by these ideologies have rejected the traditional practice of relic-veneration altogether. The most genuine prophetic relics are believed to be those housed in Istanbul's Topkapı Palace, in a section known as "Hirkai Serif Odasi" (Chamber of the Holy Mantle).
Fo Guang Shan Buddha Museum
Though not opened to public, the 48 Underground Palaces act as time capsules, storing memories of the human race. Every year, the Underground Palace Treasures Enshrinement Ceremony is held for the entombment of the artifacts that have been donated from around the world. The goal is to preserve human culture, people's faith and their lifestyles. The various artifacts collected are either of great historical, contemporary or commemorative value. One of these underground palaces will be opened every one hundred years, then other items will be stored and the palace will be sealed again. For people to understand the function of the Underground Palace, there is a permanent exhibition located on the 1st floor of the Main Hall called the Museum of Underground Palaces.