Act III is Path of Exile at it's most Diablo 2-ness. Especially the final area, Lunaris Temple, where you fight Piety. Which looks like the
Durance of Hate.
Diablo 2, Durance of Hate:
Path of Exile, Lunaris Temple:
Love the sound design in Lunaris Temple too. The creepy music, the ominous groans, the screaming / wailing of tortured souls in the background. The drip and slosh of blood.
Intense stuff. That's how it felt going in to Hell or leaving Pandemonium in Diablo.
I really enjoy the darkness and claustrophobia of Act 2 in Path of Exile. It has elements of Diablo 2's third, fourth and fifth acts; dank jungles, ruined catacombs and underground passages beneath the earth.
This game is spectacular in the same atmosphere of the original Diablo games! *
* Honestly, if I could still see Diablo 2 clearly I would play it all day long every day till I die. Probably my favorite game ever.