Poul Anderson's Tau Zero opens in the Millesgarden.
The characters visit Stockholm Old Town.
They see stars from space, venture into interstellar space and go EVA.
There is a garden in the ship.
The universe looks strange at high speeds.
The ship passes through the galactic center, leaves the Milky Way, traverses intergalactic space and passes through other galaxies and clusters.
The next passage is through inter-clan space, here, here and here.
The universe ages and the ship enters the outermost abysses.
A new monobloc forms and the ship explores a new universe here, here and here before finding a new planet.