Glass previously used to reflect light at Ponce Inlet Lighthouse in Daytona, Florida.  

Parking lot of a No Frills.

Second version with close-ups of the nails.

This mural (‘Metropolis’ by David Partridge) located near the entry doors of City Hall, consists of 100,000 nails on nine panels each weighing 180 kg, symbolizes the complexity of a large city.