Crow going to jail-In this scene, the heirs found out the answer to the Westing Game, which was Berthe Erica Crow. Since Crow was the answer the cops came and arrested Crow. This is significant because now all of the heirs know that the game was all for taking revenge on Mrs. Westing who was Berthe Erica Crow. Also, this helps the plot progress through the story.
Sunset Towers - This is the place where all 16 heirs stay. Here there were 4 bombs that exploded that was essential to the plot of the story. Also, this is the main setting of the entire story. There is also a coffee shop and a restaurant in the building.
The first meeting in the library- Here is where all of the 16 heirs figure out that they are related to Sam Westing and they have to play in the Westing Game. Also, they figure out that Sam Westing died. They all get $10,000 to start with.