>Unity Tower is a skyscraper on an island in the southwest of the Unova region. It is only accessible from the Unity Pier in Castelia City after registering a location in Geonet, and making an international trade with another user who has done the same.There is only one building on the island, which is Unity Tower. Leaving the island via boat takes the player back to Castelia City. From the boat dock, there is a pathway that leads to the entrance with eight differently colored flags that line both sides of the path. They are colored blue, red, orange, pink, silver, green, yellow, and purple. A metal detector is placed at the entrance, so that it must be passed through to enter the tower.
/Jofly
Source(s) http://bulbapedia.bulbagarden.net/wiki/Unity_Tower
