D&D 5E (2014) What is your favorite encounter site or dungeon from an official module?

[GuyBoy]

So many memorable encounters mentioned above.
I always liked the dungeons beneath the Steading of the Hill Giant Chief. It included rebellious orcs, prisoners to free, a fire giant “guest worker”, hints at Eclavdra’s role and, best of all, a truly scary lost chapel to a truly dark deity, Tharizdun.
What more could a DM want?

 

[Reynard]

I don’t know if I have a true favorite, but I’m fond of Castle Amber for being so creative and bizarre. It’s very fun with the right group.

I also like the entrance level of the Temple of Elemental Evil, probably due in part to the evocative artwork on the cover.

Actually, amending my previous post… I do kind of have a favorite: the Ruins of Phlan, as depicted in the old Pool of Radiance and Ruins of Adventure, the module based on it. I think it’s a great campaign for beginners, and I’ve run it 4 times over the years, in 3 different editions of D&D and 1 very home brewed version of Stormbringer.

It starts simple fighting kobolds and goblins, but builds intrigue quickly. The players can feel like heroes as they reclaim districts in the ruins as they go, and each district has a very distinct feel.

So many memorable encounters mentioned above.
I always liked the dungeons beneath the Steading of the Hill Giant Chief. It included rebellious orcs, prisoners to free, a fire giant “guest worker”, hints at Eclavdra’s role and, best of all, a truly scary lost chapel to a truly dark deity, Tharizdun.
What more could a DM want?

 

[jayoungr]

I have a fondness for Xonthal's Tower in Rise of Tiamat. They handled the maze in a way that appeals to me, as a series of encounters to be solved.