Share this on Facebook
download .zip with all pictures
I just wanted to mention that Friendship Hts is an example of the “second generation” underground stations. Part way though construction of the system, funding started drying up and they decided to save money by using cheap pre-cast panels.
The earlier stations feature cast-in-place [coffered vaults](https://www.flickr.com/photos/thisisbossi/5268319292/in/photostream/lightbox/).