Санкт-Петербург - единственная европейская столица
Санкт-Петербург - единственная европейская столица, которая никогда, ни в один период истории, не была захвачена противником
Saint Petersburg is the only European capital that has never been captured by an enemy, in any period of history.
Saint Petersburg is the only European capital that has never been captured by an enemy, in any period of history.