Received in early July from my Hong Kong friend who’s doing a RTW trip. :) Thanks!!
A bit about the Peter and Paul Fortress:
The Peter and Paul Fortress (Russian: Петропа́вловская кре́пость, Petropavlovskaya Krepost) is the original citadel of St. Petersburg, Russia, founded by Peter the Great in 1703 and built to Domenico Trezzini’s designs from 1706-1740.
It is the central and most important part of the State Museum of Saint Petersburg History. The museum has gradually become virtually the sole owner of the fortress building except the building of Saint Petersburg Mint.
(Thanks Wikipedia! xD)