Romeo and Juliet Play

I had several questions pertaining to how a set could be transformed during a live play (modern and Elizabethan), and just how elaborate they could be. The Romeo and Juliet play really helped to fill me in, as I have never been to a professional theater's play before.

To briefly list what I observed:
- lighting had a huge role in establishing the setting
- there were lights that controlled the color of the backdrop (behind the stage), lights for the balcony, lights for the front of the stage, and even dozens of little lights that could be raised and lowered to represent stars and candles.
-for night scenes: the backdrop lighting was dark blue, the stage lights were cut, and the main source of light came from the balcony and the 'star/candle' lights.
-for the dungeon the backdrop lighting was made green, while the main source of light came again from the candle/star lights
-there was a really neat silhouetted pattern created by the lighting during some of the musical scenes
- I can go on and on about how the lights were changed to accommodate each setting.

- cleverly disguised servants were used to remove and add props to the set as the scenes changed
-since music often accompanied at the opening of a new act, I was too busy observing the musicians to even notice the sets being changed.
-overall, the changing of the set was creatively incorporated as part of the play

-though the stage was a fixed structure, the actors made great use of what it provided, often climbing on bars, lying on sculptures, and tripping down the steps.
-the painting/design of the set was very aesthetic
-I was impressed at the dungeon door that was lowered in the final act; I did not even consider that there was one built inside the set, ready to be lowered.

Aside from the lighting, I think that everything done in this play (pertaining to the set) could have been achieved during the Elizabethan era as well.