Like a white castle appearing in the sky, the Basilica of the Sacred Heart of Paris is a popular landmark. Located in the 18th arrondissement, its a monument planned as a guilt offering after the devastating Franco-Prussian War and the embarrassments of the government that came with it. It is located at the peak of Butte Montmartre, the highest point of Paris. Needless to say, stunning panorama views can be enjoyed in addition to the church steeped in religious and political history. Inside the Basilica, you'll find golden mosaics above the choir perch that remains one of the largest of its kind while the bronze doors to the portico reenact scenes from the last supper in intricate detail. Visit Sacre Coeur either in the early morning or late evening, when crowds are less and if you want to avoid the long walk up, there's a furnicular to help you out. For budding photographers, dusk provides beautiful shots of the church against a pinkish hue.