The<span class="guilabel">Network Map</span> feature displays information about the available Tor relays and your establishedapplication">Onion Circuits</span> displays information about the current Tor circuits and connections:.
To open **Onion Circuits**, click on the Tor status icon ([[!img lib/symbolic/tor-disconnected.png alt="Tor status menu" link="no" class="symbolic"]] or [[!img lib/symbolic/tor-connected.png alt="Tor status menu" link="no" class="symbolic"]]) in the top-right corner and choose **Open Onion Circuits**.
If Tailsis already [[connected to the Tor network|doc/anonymous_internet/tor]], a list of Tor circuits appears in the left pane of *Onion Circuits*.
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In the bottom pane, there is a list of the [[circuits|about/warning#exit_node]] established by Tor.When you connect to a destination server, for example, when visiting a website, the connection appears in the list below the circuit it uses.
Each Tor circuit is made of 3 Tor relays. In the example above, the connection to **tails.net** goes through the 3 relays **drk**, **kicka**, and **Quetzalcoatl**.
[[!img doc/anonymous_internet/tor/tor.png link="no" alt="Schematics of a connection to Tor with the client, the 3 relays, and the destination server."]]
For example, when you close a circuit while <i>Tor Browser</i> is downloading a file, the download fails.
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In the bottom pane, there is a list of the [[circuits|about/warning#exit_node]] established by Tor. Whenf you connect to athe same destination server, the connection appears in the list below again, Tor uses a different circuit to replace the circuit it usesthat you closed.