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**.
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**.
The third relay, here **Quetzalcoatl**, is called the *exit node*.
15
[[!img doc/anonymous_internet/tor/tor.svpng link="no" alt="Schematics of a connection to Tor with the client, the 3 relays, and the destination server."]]
[[!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.
22
WhenIf you connect to athe same destination server again, for example, when visiting a website, the connection appears in the list belowTor uses a different circuit to replace the circuit it usesthat you closed.