The Best of the Untapped Cities Photo Pool: Nostalgia Buses in NYC, Prohibition-Era Safe, Rooftopping in Vancouver

Here are our picks for this weeks Best of the Untapped Cities Photo Pool. Remember, to enter your own pictures into the photo pool, just tag your urban exploration shots #untappedcities. Check out the live feed to see what others are exploring and tagging.

Feeling nostalgic in Union Square by @bhushan_nyc. Read more about Nostalgia Month in NYC which features old trains, buses and a vintage swing party.

Eerie staircase to nowhere in Paris by @tinpanalleypictures, one of the abandoned subway stations in Paris. There’s are others staircase to nowhere in NYC too in Riverside Park and a 7 train to nowhere.