Consider the following statements about the Imperial Capital: Vijayanagara :
1. The ruins of Hampi were discovered in 1800 by an employee of the English East India Company, Colin Mackenzie.
2. Initial information about Hampi was primarily based on detailed archaeological excavations alone.
3. The amara-nayakas were military chiefs who exercised power and paid tribute to the king.
4. Secular buildings in Vijayanagara were constructed entirely of masonry, similar to temples.