yes and yes.
the double bonds provide 6 pi electrons in pyridine, while the electrons on the nitrogen do not partake in this aromaticity. (ie this is a "basic" nitrogen. a nitrogen whose electron pairs give rise to aromaticity would be significantly less basic).
napthalene has 10 electrons as part of its aromatic system, and according to huckel's 4N+2 rule (here with n=4), it is aromatic.