Hot Room in a Roman Bath Complex
This page is the CodyCross answer for the clue below from Making a Documentary, Group 1512, Puzzle 4 (Travel and Cuisine).
Question is: Hot Room in a Roman Bath Complex
and the answer is: CALDARIUM
Word Meaning:
CALDARIUM — (historical) In Roman baths, the hottest room, with a plunge-pool. It preceded the tepidarium and frigidarium.
Definitions from Wiktionary.