Tickets are 8 euros for adults and free for children under ten. The interior of the church is indeed special, with two huge reflective metal balls. There is also a simple elevator erected to facilitate people to reach the top of the church. A bit of a scenery. But the dome's painted murals are exquisite, and the painted pigments should be added with a large amount of gold powder, which is very dazzling to see the gold from afar.