This is a giant castella specialty store located in Changwon, Korea. They bake the Taiwanesestyle giant castella that was once popular in Korea. The huge castella and whipped cream stuffed like a bomb exploded were amazing.
Price
USD Giant Castella (Whipping Cream) 8.4 USD
(Google Map) https://goo.gl/maps/ZJj97d8VDHxeymqi6