This query will give you an overview of your database:
CALL apoc.meta.graph // This is for versions of Neo4j up to 3.1
CALL db.schema() // For version 3.2 and above
The overview is currently rather poor (unlike the Capulet and Montague families):
As you can see, what we defined as labels are now shown as nodes.
I advise you to add this query as a favorite (by pressing the Star button at the right of the query input zone):
This query is very useful; I added it as a favorite for quicker access even if it is already available in the Favorites tab then Sample Scripts / Common Procedures / Show meta-graph ...