Also known by its German name Steinhaus (both names translate to stone house), this was built as a warehouse for the colony.
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The St. Gabriel church is a Lutheran church that gave the city its name - Igrejinha translates to "little church".
As in other towns in South America that has seen German immigration, Igrejinha also hosts a Bavarian-style beer festival named Oktoberfest with music and parades. Unlike the original one in Munich that is in late September (leading up to October), this one takes place in mid-October. There's a dedicated area for this festival next to the river going by the name Parque da Oktoberfest.
Also known as Monte da Fé, this is a mountain top (670 m ASL) with a big white cross. You can drive up there.