Help with Drop Down Collection of Scenes

This should be an easy one that I’m just not getting. I want to put up a drop box with a list of scenes to select from. I’m thinking something like this but with scenes instead of objects.

import bpy

class PropCollectionPanel(bpy.types.Panel):
    bl_label = "Property Collection Test"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"

    def draw(self, context):
        objects = context.scene.objects
        row = self.layout.row()
        row.prop(objects, "active")

def register():

def unregister():

if __name__ == "__main__":

It’s pretty straight forward to get a drop down list of objects because object lists that you get from a scene have an “active” property you can use. I don’t know how you’d do that with a collection of scenes though. Any ideas?