Ten Churches in Paris

From Fodor's Travel:

Come here for the magnificent medieval stained glass, all 1,113 panes depicting stories from both the New and Old Testaments. An example of Rayonnant Gothic architecture, La Sainte-Chapelle was built between 1242 and 1248 to accommodate the Passion relics, including Jesus Christ’s Crown of Thorns, that were purchased by King Louis IX in 1239. In addition to the stained glass, paintings and carvings of Christian symbolism abound with sculptures of the 12 apostles and sculptural reliefs of angels holding royal crowns. Admission is €10, or €15 if you buy a joint ticket to visit the neighboring Conciergerie, a revolutionary tribunal and prison where Marie-Antoinette was held. This church is so historically meaningful, there’s even a free app called Sainte-Chapelle Window that zooms in on the fifteen 50-foot tall windows to explain their stories. (Read more.)