I posted a stone carving from a building in Chicago yesterday and observed that it was done in an "era when there was time, talent and money to hand carve decorations for skyscrapers." The building you are looking at is another sort of sky scraper: it is the Notre Dame de Paris. It is the most famous Gothic Cathedral and it took over a 100 years to construct. It, too, was done in an era when there was at least time and talent to construct such buildings.The carvings in this photo are over 1000 years old.