The axis of rotation of the planet Uranus is approximately parallel to the plane of the Solar System, with a tilt of 97.77° (as defined by prograde rotation). This gives it seasonal changes completely unlike those of the other planets. This gif shows a simulated view of Uranus as seen from Earth between 1986 and 2030, from southern summer solstice in 1986 to equinox in 2007 and northern summer solstice in 2028.

GIF Credit: Tomruen
CC BY-SA 4.0