Begun some time after 1239 and consecrated on the 26th of April 1248, the Sainte-Chapelle is considered among the highest achievements of the Rayonnant period of Gothic architecture. Its erection was commissioned by King Louis IX of France to house his collection of PassionRelics, including Christ's Crown of Thorns - one of the most important relics in medieval Christendom.
With the Palais de la Cité, today called La Conciergerie, the Sainte-Chapelle is one of the surviving buildings of the Capetian royal palace on the Île de la Cité. Although damaged during the French revolution, and restored in the 19th century, it retains one of the most extensive in-situ collections of 13th century stained glass anywhere in the world.
Paris, the capital of France, has an annual 30 million foreign visitors, and so is the most visited city in the world. Paris' sights include monuments and architecture, such as its Arc de Triomphe, Eiffel Tower and neo-classic Haussmannian boulevards and buildings as well as museums, operas and concert halls. There are also more modern attractions such as its suburban Disneyland Paris.