In a small workshop in West Yorkshire, John Gleave painstakingly builds orreries by hand, using the same tools that would have been used 200 years ago. He is probably the last orrery maker in England. A simple orrery shows the movement of the Earth and Moon around the Sun.
More complex ones show other planets as well.
The annual seasons are the direct result of the tilt. At the Midsummer Solstice, the North Pole is tilted exactly towards the Sun, and the Northern hemisphere has it's longest day - and vice versa at Midwinter Solstice. In between, at the Equinoxes, both hemispheres have equal day and night. An orrery can help to explain the movements of the heavenly bodies, for example in the Northern hemisphere the reason for the Sun being high above the horizon in summer and low in winter should be clear, as well as the reason why many winter star constellations are different from those seen in the summer sky.