Surrounded by seven hills, high above lush green forests is the temple town of Tirumala.
The crown jewel is the dazzling gold-plated temple of Lord Venkateshwara. Located in the southern Indian state of Andhra Pradesh, this is not just one of Hinduism’s holiest shrines, but also one of the richest.
It has an annual income of $340m - mostly from donations.
Between 50-100,000 people visit this temple every day. This puts enormous pressure on water, electricity and other energy resources.