  We review the basic ideas about man-made quantum mechanical black holes. We
start by an overview of the proposed attempts to circumvent the hierarchy
problem. We study the phenomenological implications of a strong gravity regime
at the terascale and we focus on the issue of microscopic black holes. We
provide the experimental bounds on relevant quantities as they emerge from
major ongoing experiments. The experimental results exclude the production of
black holes in collisions up to 8 TeV. We provide some possible explanations of
such negative results in view of forthcoming investigations.

High Energy Physics - Theory;General Relativity and Quantum Cosmology;High Energy Physics - Phenomenology