This vast, fortified underground vault, known as Vault-703 of the USSR's Ministry of Foreign Affairs, contained numerous secrets, as it served as an archive for the Soviet, and later the Russian, Foreign Ministry. The underground facility is located near the centre of Moscow and began to operate in 1961, before eventually becoming a museum in 2018.

Exhibit item in the Vault-703 museum in Moscow

Visitors of the Vault-703 museum

Visitor inside the Vault-703 museum

Visitor inside the Vault-703 museum

Part of the Vault-703 museum's communications

Exhibit item in the Vault-703 museum in Moscow

People visiting the exhibition at the Vault-703 museum

Soviet gas mask at the Vault-703 museum

Manual warning system at the Vault-703 museum

Visitors of the Vault-703 museum

Visitor of the Vault-703 museum

Old Soviet items in the Vault-703 museum

Visitor of the Vault-703 museum
