Myra suggests they meet at the Fairmont Hotel - we see them dancing there at the Sky Room.
... in the 1950s ... here's the same view, looking east to the Bay Bridge, captured by this vintage daytime photo taken from the Top O' The Mark. The window view above is the portion outlined in yellow.
... from yet another movie ... and it was featured six years later in the 1958 movie Vertigo.
San Francisco did however offer several so-named Sky Rooms. The first one opened in 1938 on the 24th floor of the Hotel Empire (formerly the William Taylor Hotel), but closed down only 5 years later. In the postcard image of the hotel, below, you can see the oversize Sky Room windows glowing red. Since 1978 this grand 1930 structure at 100 McAllister Street (map) has belonged to the University of California's Hastings College of the Law.
Here's another postcard extolling, with more than a little hyberbole, the virtues of the Hotel Empire Sky Room - a very swanky place indeed.
Then there was the Sky Room at the Marines Memorial Club at 609 Sutter Street. In the 1947 photo below we see a more functional restaurant and bar but it too had panoramic views.
Getting back to the movie ... Myra and Lester next head over to the Chapeau Blanc. CitySleuth is not aware of this club - was there such a place in San Francisco? Let him know.
Then ... Finally, in the wee hours of the morning after the long journey west and dancing through the night, Myra drives Lester to her palatial home in Cow Hollow. The view below looks north towards the Marina district as her car climbs Scott towards us at Green Street.
... and Now, other than the trees, an unchanged view.
Then ... A sweeping U-turn brings her home - note the angle of the car on this very steep Green Street block. Opening the driver's door against gravity would have been a challenge for Myra but Lester plays the perfect gentleman - he leaps out and does the honors for her.
... and Now, today's view. The home is 2800 Scott Street on the corner of Green.
Inside, Myra proudly shows Lester her state-of-the-art dictating machine which she custom ordered for recording her scripts. The machine turns on when it hears a voice and off again when the speaking stops. We don't know it yet but it will play a major role as the story unfolds ...