Gaudi’s dream which will be reached finalizing the construction of the "Sagrada Familia" in Barcelona, the victory of the Swiss sail boat "Alinghi", which won America’s Cup, films such as " A Beautiful Mind" and "Enigma", the theatrical play based on the life of Galois, the images of the Dutch graphic artist M. C. Escher, crypotography, comics. What all these topics have in common? Mathematics, of course. This book focuses on the important role of mathematics in culture. It shows how very complex links between mathematics and culture can be not only interesting and stimulating but also fun.