Dallas tends not to conjure up images of water cascading down craggy stone cliffs. However, locals and visitors alike can behold the city’s own version of a majestic waterfall above Interstate 35, just off Harry Hines Boulevard in front of the Alexan apartment complex. There, on a giant billboard currently advertising Miller Lite, with a shoutout to the Dallas Cowboys, water rushes down a carefully crafted rock mountainside, beckoning commuters and road-trippers to Big D.