The Los Angeles address of the bar run by Guinan, visited by Picard in both 2401 and 2024 in the second season of Star Trek: Picard and seen again in the third.
10 Forward Avenue is the street address of a bar in Los Angeles kept by Guinan, the El-Aurian who once ran the Ten Forward lounge aboard the USS Enterprise-D. The name is a nod to that earlier establishment.
In the Picard second-season opener The Star Gazer, set in 2401, Jean-Luc Picard visits her there for a drink and for advice about his reluctance to let anyone close. When he is later thrown back to 2024, in Watcher, he finds the same premises and a much younger Guinan, disillusioned with humanity and preparing to leave Earth.
The bar returns in the third season. Picard and Riker meet there in The Next Generation, among shelves of unsold Enterprise-D souvenirs, and a holodeck copy of it on the USS Titan-A serves as a retreat in later episodes.