Hampi, India, was home to one of the largest Empires of the World: Vijaynagara Empire. The Hindu temples have resisted the Islamic Invasion although many were destroyed by the invasion. In the year 1325 Muhammad-bin-Tughluq led several attacks towards south India, particularly Hampi. The Vijaynagara Hindu Empire was created to protect India from the Invasions.
Great Wall of India– The Kumbalgarh Fort. This is the second largest continuous wall on the whole planet. There are 360 Hindu Temples within the fort complex, along with the Maharaja's Grand Palace, Yet bewilderingly, it is still little known outside of India!