Not sure in what context you're asking this question, but my answer is the International Space Station. I love how it's possible to see it at random sometimes at night, and the way it crosses the sky just looks different compared to a regular airplane flying at night.
Pedantic question! Does the ISS count as a spaceship? I feel like something that travels in an orbit is kind of the equivalent of something stationary on a planet… so it feels like more of a, uh, station, than a ship to me. It’s a good answer, though!
Feels like a tomato fruit situation. It's technically a ship, but we know it as a station?
A marine equivalent might be a floating structure with its own propulsion system. Technically a boat, but it doesn't move around that often and it let's other boats dock/undock from it.