Buildings
Permit me to clarify.
The top of the theatre is a good 20 to 30 feet above the ground. To get in via the collapsed dome, you'll need to make a climbing check. (DX at half for the non-thieves.)
Brogg throws a big piece of debris, perhaps a discarded glaive-guisame, at the door. Brogg, make a ST check at -12 to smash the doors. A maximum of three checks per PC. The glass is quite thick and perhaps, you wonder, magically enchanted.
Yes, in some places, the ruins of old buildings or even strange, hard-to-identify contraptions blocks your view. Separating the two footpaths, for instance, there seems to be an old barge with cryptic runes in faded paint down one side. Other buildings are here in the valley but are apparently of less interest than a cursory scan would reveal. If you'd like to search around, roll a d6 and d%.
There are large iron doors to the foundry, also bound in chain. However, it seems that these chains were broken, and one of the doors sits partially ajar.
At the back of the valley is what looks like a chapel made of red brick. A stained-glass window at the top displays a rose with a spoked wheel, perhaps a gear. The doors are of dark wood with a similar emblem on each; a broad staircase leads up to these two large doors. The doors are shut with no apparent lock or chains. There seem to be old blast marks on the stairs.
I am happy to provide more information about your surroundings as need be.