Viking Underground Cities of the Underworld : Season 2 Episode 4
TV-PG Planète+ A&E 43m
Aired: February 28th, 2008 @ 7:00 PM EST on Planète+ A&E
Dublin, Ireland is much more than a city full of pubs and pints. Burial tombs, defense tunnels, and mysterious burial crypts line the underground below the rolling hills.
