St. Mary of the Snows Church, Prague, CZ, 2014

St. Mary of the Snows church naturally is open year-round, but here's an actual picture of the church in the snow. Officially founded in 1347 (some sources say 1397, so this could be wrong), this church is physically the highest in Prague with a 34 metre-high vault, even though this photo doesn't make it obvious. This height record doesn't include spires, as St. Vitus Cathedral and several other Christian places of worship have spires far above 34 metres. The altar at St. Mary of the Snows is also higher than any other in Prague, at 29 metres.