BlackHoleCam is a project funded through a “Synergy Grant” awarded by the European Research Council (ERC) to a team of European astrophysicists (see partnerships) to construct the first accurate image of a black hole. By measuring the shadow cast by the event horizon of the black hole in the center of the Milky Way, the project will provide the indisputable proof that black holes exist. The measurements are done by combining several radio-telescopes around the globe in a synchronised network as large as the Earth (the Event Horizon Telescope) to peer into the heart of our own Galaxy, which hosts a mysterious radio source, called Sagittarius A*, and which is considered to be the central supermassive black hole. The project aims also at finding new radio pulsars near this black hole, which will allow to measure its physical properties with high accuracy. By combining these measurements with advanced computer simulations of the behaviour of light and matter around black holes, BlackHoleCam will test predictions of different theories of gravity, including Einstein’s theory of General Relativity, with unprecedented precision.