What's your favorite off the beaten path spaceship?
The Event Horizon is great. So are the others that immediately come to mind. What's your favorite forgotten/lesser known ship. Here's the Cygnus from The Black Hole.
I'm gonna say the Nostalgia for Infinity from Alastair Reynolds's Revelation Space series. It's the size of a small city and was built centuries before the start of the series to carry 100k passengers, but now it's completely decrepit, crewed by 6 people, and the majority of the ship hasn't been explored by anyone in decades.