Crochet project: 9 Days in Barcelona

This necklace is a conceptual project.
I was 10 - 18 May 2014 in Barcelona and crocheted in:
- in airplane (green)
- in bus (dark blue)
- in cafes (red)
- in my airbnb apartment (rose-pink gradient)

All together: 8 h 45 min crocheting
I went 80 km on foot in there 9 days,
it is also marked in the graphic.