In Gotha, Friedenstein Castle and its holdings have been preserved as a unique ensemble with the historical presentation rooms from the Baroque and Classicism periods, the Ekhof Theatre, and collections equally diverse and rich in art history, history, and natural history.

Blankenhain Castle, built around 1150 in the town of the same name (population including all districts - as of 2019: 6,522) dates back to a Romanesque ring house castle. The shape of a closed, irregular oval gives the castle an architectural scarcity value