Basilique du Sacré Cœur

A view of the Basilique du Sacre Coeur on the highest point in Paris taken from inside of the Musee d'Orsay in May of 2012. 
From Wikipedia.....
Sacré-Cœur is built of travertine stone quarried in Château-Landon (Seine-et-Marne), France. This stone constantly exudes calcite, which ensures that the basilica remains white even with weathering and pollution.
It was built in the 1870's from private donations.