Passion flower vine brightens inner city

Vines are a perfect city plant: requiring relatively little soil and space, covering large vertical areas, providing seasonal foliage and color. This wispy white passion flower is lovely.
Update: Since Jason informed me that maybe it isn’t a passion flower vine, I have added a second image. Anyone else have an idea what it is? Do you think that gourds/melons/squash are being formed? The added image also shows how the vine both covers that wall between properties and also decorates the side gate.

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I’m not seeing a passiflora here. Maybe something in the Curcurbitaceae, the melon/squash family? Very pretty.
My plant identification abilities are limited. I wonder if I can find it again. I’ll add some more photos. Please feel free to correct my horticultural mistakes!