  We present near--infrared J and K observations of giant stars in five
metal-poor Galactic Globular Clusters (namely M3, M5, M10, M13 and M92)
obtained at the Telescopio Nazionale Galileo (TNG). This database has been used
to determine the main photometric properties of the red giant branch (RGB) from
the (K,J-K) and, once combined with the optical data, in the (K,V-K) Color
Magnitude Diagrams. A set of photometric indices (the RGB colors at fixed
magnitudes) and the major RGB evolutionary features (slope, bump, tip) have
been measured. The results have been compared with the relations obtained by
Ferraro et al. 2000 and with the theoretical expectations, showing a very good
agreement.
