Anime movie

I search for a anime movie
It’s about a girl who falls into a lake and then get’s into a secret city, some sort of…
Maybe not exactly that, but she definetly gets in that “secret city” and what I can also remember, there’s a scene where she’s on a train and has a nice view over this city

Maybe this one?:

Quote from the movie’s Wikipedia plot description:
" Lupin and Clarisse fall into the castle’s lake. After using the rings on a secret mechanism built into the tower, the Count is crushed to death by the converging clock arms. Lupin and Clarisse watch as the mechanism drains the lake to reveal exquisite ancient Roman ruins — the true treasure of Cagliostro."

Spirited Away: