(This was before laser pointers). I have toured the Olympia and it's a fun visit. You can tell it was the Admiral's flagship because of the mahogany details (even in the crew areas) and the general spaciousness of the ship. On the other hand, I walked around it after spending 45 minutes crawling through the Becuna, a WW2 era sub. The Becuna gives you a great idea of what being in a space capsule would be like, if it was diesel-powered.
More cats here:
This one was stolen from tkohl on Reddit.