The purpose of this chapter is to explore urban visibilities and invisibilities, being attentive to the physical, digital, and ambient, giving rise to the need for further developing and extending spaces for theory. As such, this chapter seeks to shed light on the importance of elements pertaining to the visible, the invisible, and the ambient in urban environments informing theory for smart, responsive, and future cities. The research literature for urban theory in relation to urban visibilities and invisibilities is explored in this chapter in the context of smart and responsive cities. Using an exploratory case study approach, this chapter makes a contribution to 1) the research literature for urban theory in relation to smart and responsive cities, 2) the evolving of urban theory for smarter cities and regions, and 3) the evolving of theory through frameworks in support of the interweaving of spaces for invisibilities and visibilities as InVisibilities in a more aware environment, as in, ambient.