Dia Lautenschlager
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It's not the church you have to see (although it is nice). Inside of what used to be the cloisters (?) you will find the biggest fountain in all of Central America and be able to climb up to the roof to get spectacular views of the entire town. As you stand in front of the church, to your left you will see a gift shop. Walk through that and you will find a place to buy a ticket for entry for Q35. Hold onto your ticket as you need it to get onto the roof. I can't believe It took me so long to check this out. It's been open now for over a year!