The Globe Theater was an Elizabethan style theater built in 1599 by the Lord Chamberlain’s Men, more famously, Shakespeare’s troupe. It had a capacity of 3,000, open-air and 3 stories high; it had an apron stage that came out into the audience and a pit for those who could not afford seats, called “groundlings”. The ceiling and stage both had trapdoors, for clever entrances, and there was a balcony for iconic scenes such as the romantic balcony scene from “Romeo and Juliet”. It was burnt down on June 29, 1613 and completely shut down by the Puritans in 1642. The site now has a modern reconstruction, built in 1997.
I highly recommend visiting the reconstruction in London if you’re visiting; it is really cool to get a feel for the place.