[D4] Things you found from previous Diablo Titles

What places/landmarks/npcs/... did you come across that were in previous Diablo games?

I found the hidden camp from D3 act 2 the other day. Which was a nice find, since unexpected.

::: spoiler location directly north of the Denshar WP, east of Gea Kul :::

::: spoiler story related finds ...and obviously Lorath as well as old Meshif from Lut Golein in D2 :::