‘Euphoria is You for Me’, the final line of a poem Powers painted around an old Macy’s store in Boerum Hill, Brooklyn. Photograph: Matthew Kuborn

‘Meet me downtown for a few/ Every street carries us home/ Born busy as a Brooklyn Bound B/ I am made to leave/ I am made to return home.’ Photograph: Matthew Kuborn.

All I Need Is You, above Brooklyn’s Fulton Fried Chicken, which used to be Tony‘s Pizza – the red dots in ‘you’ are meant to be pepperoni. Photograph: Matthew Kuborn

Remember, a super-sized Post-it at 4915 Market in Philadelphia. Photograph: Adam Wallacavage

I Paid The Light Bill Just To See Your Face, in Syracuse, New York, inspired by an old light bulb outline once painted on the same bridge. Photograph: Adam Wallacavage