Here is the image that was giving some issues with the blue sky. I think I finally figured it out.
Built in 1927, the Tower Life Building is a historic neo-gothic building and is one of the few eight sided buildings in the world. It's very beautiful to see at night. This was shot when the ambient light matched the city lights. Two exposures merged using luminosity masks for the highlights.
Zeiss 35mm ZE
Wow, the detail in the larger version is awesome! Great shot!