STEEL STACKS PHOTO GALLERY. In Bethlehem PA I saw one of the best things I've ever seen throughout the country. This is the old Bethlehem Steel Factory, closed down in the 90s. They have ramps built so you can look into this huge structure with signs explaining what you're seeing. Fascinating. Click on the first thumbnail to see larger image. Use controls at bottom of each large image to start slide show or go through manually or with arrow keys.

STEEL STACKS PHOTO GALLERY. These signs are placed all over the ramps. Click on the first thumbnail to see larger image. Use controls at bottom of each large image to start slide show or go through manually or with arrow keys.