Go to Settings → Destinations. This tab provides another view of your destinations — the same data as the main Destinations page but accessible directly within settings.
From here you can see all your verified destinations, their reply and send permissions, and which one is set as default.
For full destination management — adding new ones, verifying, revoking — the dedicated Destinations page has more detail and functionality. The settings tab is mainly useful for a quick overview when you're already in settings configuring something else.
For more on destinations, see the Destinations topic.