Tsar Cannon in Moscow, Russia (RM)

Tsar Cannon in Moscow, Russia (RM)

Cannon balls, Gothenburg City Museum (RF)

Kanon in Moscow, Russia (RM)

Kanon at Ponta de Sagres, Portugal (RF)

Akers fortress, Oslo (RF)

Akershus in Oslo, Norway (RM)

Crown Hall in Kristianstad, Skåne (RM)

Akers fortress (RF)

Akers fortress (RF)