In the 17th century, Narva was a city on the border between Sweden and Russia, which Sweden wanted to turn into a regional capital.
The designer of the defence fortifications was a military engineer and architect Erik Dahlberg. A total of seven bastions were built on his initiative: Honor, Gloria, Victoria, Fama, Triumph, Fortuna, and Spes. An existing bastion called Vrangel was renamed Paks, or Fat in English.
All bastions, except for Fama, have survived. Viktoria is the mightiest of the seven Narva bastions. Viktoria's walls, casemates, and gunpowder storehouse have been restored. Honor and Gloria are also going to be restored.
Really interesting to hear the history behind all of this. If you get a chance, try to find a local or a guide to tell you about the bastions and the castle. Make sure you go during the summer too...
Bastions are visible in most of the town - not pretty or anything, but when you read the signs and the history, they are very interesting.