If you get off the train at the Deák Ferenc tér station on metro line 3, you can discover strange and colorful tiles, a kind of tessellation on the middle wall of the station. Although each day many people walk by this mosaic, really nobody knows the meaning of the letters. To solve the secret is not easy, but it is not impossible, if you know the rules of reading or the order of letters. It is good, if you speak different European languages, because you can find on the walls Hungarian poems in Portuguese translation and Portuguese ones in Hungarian.
The tiles mosaic was given to Budapest by twin-city Lisbon in 1996 for the millecentenarian anniversary of the settlement of the Magyars in Hungary, the artist was Joao Vieira. There are between the Hungarian poems the “At the Danube” by Attila József, or the “Freedom and Love” by Sándor Petőfi.