There is an unusual romantic park called Mon Repos in the center of the city. It's famous for its mysterious grottoes, beautiful cliffs, and pavilions in various styles. Restoration of the park will last until 2020, but it's already open for visitors.
The main symbol of the city, along with the Vyborg castle, is the famous Round tower, built in the XVI century and located. There is a restaurant there which dates back to the time where the city was Finnish and is still open for hungry visitors.
Narrow medieval streets, Lutheran churches, the most ancient stone houses in Russia, fortresses and towers remind of Tallinn and Helsinki, but, nevertheless, Vyborg is a unique city which should be a must-see for everyone coming to Russia.