@op1919 As Mickey&Maleficent says, there are no chests anymore. In 3.0 you unlock things (also all that was in the character chests in 1.0) by
-placing a character on the base
-using/linking your disney-account if you have played the previous games
-using sparks in the toystore.
If memory serves right Rapunzel's tower should be among the buildings, were you also get the epcot center or matterhorn. Either unlocked or in the toystore section for purchase.