Noelia and Lucia, during their Easter holidays, traveled to the city of the Seine River. There, they visited the most famous picture painted by Leonardo da Vinci. Can you reveal the name of this picture and tell us the museum´s name where it is ?. They were impressed by the great glass pyramid located in the square that gives access to the building and they returned to Santiago de Compostela with a task, calculate the pyramid volume, can you help them?