The Window menu provides easy access to all of the windows, inspectors, and palettes in Dreamweaver. A check mark next to an item in the Window menu indicates that the named item is currently open. (Though it may be obscured behind other windows.) To display an item that doesn't have a check mark next to its name, select the item name from the menu.
In general, if you aren't sure where to look for a Dreamweaver feature, try the Window menu.