On our last day, we had tickets to see A Midsummer Night's Dream (on midsummer's day no less!) at the Globe Theatre. It was a very interesting production; the cast remained in their pajamas for the entirety of the play, and when they were playing their fey counterparts, little lights lit up on their pjs.

The exterior of the newly rebuilt Globe Theatre. You can see the three levels from this exterior shot. Our seats for the show were on the third level.
The Millennium Bridge, built in part for the Y2K festivities, has one end about 100 yards from the riverfront of the Globe Theatre, directly in front of the Tate Modern Gallery.
Looking across the Thames at St. Pauls Cathedral.
The stage of the Globe Theatre. You can see the lower two levels of seating at the opposite end of the stage.
Seating at the Globe Theatre. In this picture, you can see all three levels of seating. You can also see where the groundlings get to view the play from, for only five pounds. Much like the actors probably did in Shakespeare's time, the actors actually direct some of their conversations at the groundlings, including them in jokes and referring to them. As a sort of payback, some of the groundlings lean against the stage, using it as a place to rest their heads or arms.