  This article gives an overview of recent highlights from experimental
measurements of heavy-ion collisions at ultra-relativistic energies:
Measurements of electroweak probes constrain both the initial collision
geometry and the nuclear parton distribution functions. Results from soft
particle production show that the abundance of light-flavour hadrons from pions
up to hypertriton and $^4$He can be described by a universal temperature and
that these participate in the collective motion of the system. There are hints
of these effects also in small systems, which will be further investigated in
future to understand the underlying mechanisms. Studies of hard probes, such as
heavy quarks and jets show that parton energy loss plays an important role in
heavy-ion collisions. Differential measurements of J/$\psi$ mesons elucidate
their production mechanism, i.e.\ regeneration, and give evidence for
deconfinement in Pb--Pb collisions at LHC full energy. The large data samples
at the LHC enable studies of rare probes such as $\chi_{\rm c1}$(3872) and
top--anti-top production. Further, measurements of antinuclei cross sections
can provide input for dark matter searches.
