More info: Sacre Coeur is the highest point in Paris. Construction of the Basilica began in 1875 and it took nearly 39 years to be completed. From a distance Sacré-Coeur appears to be perfectly white. The reason for this is due to its construction with a particular type of limestone called “travertine.” This type of stone actually cleans itself when in contact with water because of a substance it releases called “calcite.”
The main bell (there are 5 in total) inside the basilica is the fifth largest in Europe and weighs around 18,835 kg. A total of 28 horses were needed to bring the bell into the church when it was installed in 1895.