  Thermodynamics originated in the need to understand novel technologies
developed by the Industrial Revolution. However, over the centuries the
description of engines, refrigerators, thermal accelerators, and heaters has
become so abstract that a direct application of the universal statements to
real-life devices is everything but straight forward. The recent, rapid
development of quantum thermodynamics has taken a similar trajectory, and,
e.g., "quantum engines" have become a widely studied concept in theoretical
research. However, if the newly unveiled laws of nature are to be useful, we
need to write the dictionary that allows us to translate abstract statements of
theoretical quantum thermodynamics to physical platforms and working mediums of
experimentally realistic scenarios. To assist in this endeavor, this review is
dedicated to providing an overview over the proposed and realized quantum
thermodynamic devices, and to highlight the commonalities and differences of
the various physical situations.
