From Bulbapedia, the community-driven Pokémon encyclopedia.
Roshan City (Japanese: ローシャン Rōshan) is an anime-exclusive location in Unova. It is one of the settings of Kyurem VS. The Sword of Justice.
Roshan City is a sprawling city accessible by train. Underneath the city are disused subway tunnels, and one of the old stations has been transformed into a museum for old transportation devices.
A train track that leads to Roshan City connects it with Windy Station and probably other locations as well. Ash and his friends took the train to Roshan City and on their way met an injured Keldeo. When they arrived in Roshan City, they immediately took it to the city's Pokémon Center. The Nurse Joy there told them more about Keldeo and the Swords of Justice. After Keldeo was healed, Ash, Iris, Cilan took Keldeo outside and ate dinner with it.
Shortly afterwards, they were attacked by a group of Cryogonal, which were sent by Kyurem. A wild chase followed, continuing through the city's disused subway tunnels, until Ash and his friends managed to escape the city with a blimp from Roshan City's museum of old transportation devices.
The city is modelled after Seattle, Washington, United States.
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