I'm visiting Portland from the UK. The Memory Den is a large warehouse converted to a vintage shopping Mall in the industrial area of Portland, Oregon, close to the Willamette River. Trains hauling a hundred wagons pass along the tracks just meters away from the building. 

Sounds from outside the building mix with the noises within it. This recording is from inside the Memory Den: a passing train sounds its horn while kids play the basketball shooting machine inside the Mall. They then change focus and play the piano a few meters away. A seamless transition. 

New industrial train sounds mix with the tones of old vintage items, played now to pass the time on a cold November afternoon.

Recorded by Paul Stephens-Wood.