personal highlights

1. Hermitage: former residence of the Russian emperors
2. Hermitage Museum: the world's second-largest museum!
3. Architecture: one of the most iconic buildings in the city
4. Hermitage Theatre: watching an epic ballet (Swan Lake)
5. UNESCO: protected together with the historic city center

image sources

1. marble stairs in the main entrance
2. rear wall of the Hermitage Theatre 
3. zar's throne in St. George's Hall
4. the building from the outside
5. marble angel in the exhibition