Street art · Barcelona

Crescendo appare

By Mario Merz

Crescendo appare by Mario Merz, Barcelona
Photo: Enfo, CC BY-SA 3.0 es

Look down, not up: numbers "6765" bend into neon-tube cursive under a sidewalk hatch, like a hidden Fibonacci riddle Dan Flavin might've dropped for you to trip over.

Source: OpenStreetMap contributors, photo via Wikimedia Commons.

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