The Fairground subtheme is part of the LEGO ICONS (formaly LEGO Creator Expert) theme and represents a number of sets that incorporate elemets of fairs and amusements rides including roller costers, carousels, ferris wheels and more.
2018 LEGO Sets
In 2018, The LEGO Company celebrated the 60th anniversary of the brick and introduced a number of sets to commemorate this. This year also so a number of new and revisited themes including the return of Harry Potter sets after 6 years. New themes such as Jurassic World: Fallen Kingdom, The Powerpuff Girls, Unikitty! and Solo: A Star Wars Story was added to LEGO Star Wars. We also so the discontinuation of LEGO Dimensions and Nexo Knights.