Reims is the metropolis of the Champagne-Ardenne area, and a city that celebrates art, history and the enjoyment of fine food and wine. Along with its restaurants serving the finest food and wine, it has countless of art galleries and buildings with varied architectural styles. Some of them date back as early as the 3rd century, such as at the Gate of Mars, the Gallo-Roman cryptoporticus. Contemporary architecture can be seen at the Conservatoire National de Région, the Reims Champagne Congress Centre. Reims also has many rare trees, including a specimen of the Faux de Verzy at the Pierre Schneiter horticultural garden.