In the 28th century, Palnak's museum was built.
Over the next five centuries, Palnak acquired a variety of specimens.
In the 33rd century, Palnak transported James T. Kirk, Spock, Montgomery Scott and the crews of two shuttlecraft from 2265 to this time period, in order to add them to his collection. When Kirk and Spock escaped, they broke into an exhibit and stole live weapons.
Palnak preferred to destroy his facility, killing himself and the Starfleet officers, rather than cede defeat, and he began setting off explosions within the museum as the crew fled outside. Spock was able to use the time travel equipment to return his crew to the 23rd century. (TOS comic: "The Ageless One")