Croom is home to Croom Castle, rebuilt by the FitzGeralds and Fitzmaurices from an earlier O'Donovan fortress, which may or may not have first been destroyed. In any case, it was restored in the 19th century. In the 18th century, it was the meeting-place of the "Maigue poets." West of Croom are the ruins of a 15th-century church (National Monument) and a round tower (12th century), the top part of which is missing.
