If you expand the node "Databases" on the management studio, you will see the following sub nodes:
You can expand the System Databases node further to see all the default, system databases. You may not want to mess with them !
Below the System Databases and Database Snapshots, you will see the list of the databases you have created. You can expand any of your database name to see further options below the node. See the screenshot:
Above screen shot shows two custom databases with the names "dotnetspider" and 'aspspider".
Under the database name, you may expand the "Tables" node to see the list of all tables within the selected database.