Adhai Din Ka Jhonpra, Ajmer, Rajasthan India

No matter what people believe about the secular nature of Muslim rulers in India, the Adai-din ka Jhonpra is the ultimate example of the destruction of a Hindu or Jain temple to construct a mosque.

The mosque is believed to have been built in two and a half days, thus named Adhai-din (two and a half days). Another belief is that its name is attributed to a two and a half day fair held nearby each year. The edifice was originally a Sanskrit college, but Muhammad Ghori converted it into a mosque in 1198 and built a seven-arched wall inscribed with verses from the Koran