What do we see when we look at data? This recurrent question when confronted to Big Data, is largely answered by two different disciplinary visions dominating the debate during the last years, concluding that data are raw and Big Data is a hubris. While disciplines still treat just a part of them, we experience a wider and wider spreading of Big Data. The notion of “monuments of cyberspace” discussed here helps understand their peculiar nature and delimit related issues of method, of wealth and of experience.