D2 Classic : are area levels equal to LOD ones?

[BOB2]

Hello,

I am wondering if the area levels are the same in the D2C and in LOD.
I already ask almost this question, and got a partial answer. The monster level of classic monster is normally lower than the equivalent in LOD.

The real question is: do some spots exist where area level is "weirdly" high? like the PIT in LOD or the Mausoleum?

Reworded, the question that could be asked is: is there any place to level out of the Chaos Sanctuary?

Thanks in advance,

Have a good day,

BOB2