  Following the discovery of a new family of kagom\'e prototypical materials
with structure AV$_3$Sb$_5$ (A = K, Rb, Cs), there has been heightened interest
in studying the correlation-driven electronic phenomena in these kagom\'e
lattice systems. The study of these materials has gone beyond magneto-transport
measurements to reveal exciting features such as Dirac bands, anomalous Hall
effect, bulk superconductivity with $T_c$ $\sim$ 0.9 K-2.5 K, and the
observation of charge density wave instabilities, suggesting an intertwining of
topological physics and new quantum orders. Moreover, very recent works on
numerous types of experiments have appeared further examining the
unconventional superconductivity and the exotic electronic states found within
these kagom\'e materials. Theories on the strong interactions that play a role
in these systems have been proposed to shed light on the nature of these
topological charge density waves. In this brief review, we summarize these
recent experimental findings and theoretical proposals, and envision the
materials as new platforms to study the interplay between topological physics
and strongly-correlated electronic systems.
