What's your favorite first dungeon of all of FFXIV's eras?

[Klytania]

Sastasha will always be special because it's everyone's first dungeon experience. I can still vividly remember the friends I was with and what classes they were playing, even their glams they had all these thousands of hours later.

As far as raw "cool" factor, I gotta say Holminster. Although Tower of Zot is memorable for having one of the more difficult boss lineups.