Vault of Stellar Curios

The Vault of Stellar Curios was a Jariden facility where Kalinda Ulrik worked. It was visited by the Fifth Doctor and the Eighth Doctor at the same time, both attracted by a leak of chronon particles. It was attacked by the Daleks, led by the Dalek Prime. Indeed, their aim was the content of its inner vault, that was a weapon. (AUDIO: The Four Doctors)