pittsburgh city skyline at dusk. located at the confluence of the allegheny, monongahela and ohio rivers

allegheny america american architecture blue hou bridge buildings business city cityscape confluence downtown dusk evening fall financial district highrise illuminated infrastructure landscape lights metropolis monongahela office ohio river outdoor pennsylvania pittsburg pittsburgh skyline scenery scenic sky skyscrapers steel tourism towers travel twilight united states urban usa view water dusk located rivers august 2024: