Why were these people waiting in line? Had to GOOGLE to find out

Drove over the 16th Street Bridge  Saturday evening, as I returned to the city from Ohio.

As I sat at the red light at the end of the bridge I saw this line.  That’s a lot of people in line, I thought.

Camera was right there on the passenger seat and the light was red.

Forgot about the photo until tonight (Monday) and then googled 16th Street and Penn Avenue restaurant.

I found out why they’re all waiting in line.

Figured it was a restaurant not a concert as the music venue is on the opposite side of the street.

Yep.

 Gaucho Parilla Argentina.  a Wood-Fired Grill. 1601 Penn Avenue.

Not sure when they opened but seems everyone else already knew!

P.s.  August 27, 2015 An article about The restaurant in the Pittsburgh Post-Gazette today Gaucho