Christ Church Cathedral

A wooden church was built by the Vikings around 1030, and the first stone church was from the 1180s. So this is the oldest building in Dublin, though it underwent a massive restoration in the 1870s. It became Protestant under Henty VIII, apart from a brief Roman Catholic interlude in 1690 when the exiled James II was campaigning in Ireland, and the Vatican still claims it. The oldest part is the large crypt, where amongst the items on display are a mummified cat and rat, which got themselves stuck in the church organ in the 19th century.

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