If the location of the fight sequence in The CW’s Legends of Tomorrow trailer looks familiar to you, there might be a reason for that.
The location is the original powerhouse at the Stave Falls Dam and Powerhouse, which according to Wikipedia, is now a tourist attraction that includes a visitor centre. To fans of DC Comics TV shows, it was the location of the fight between Clark (Tom Welling) and Bizarro (also played by Tom Welling) in the Smallville Season 6 finale, titled “Phantom.”
You can see it in [squished] action in this Smallville “Phantom” clip from YouTube:
And below, of course, you can find the trailer for DC’s Legends of Tomorrow.