Then head to the Baths of Caracalla. Let your guide bring to life the impressive ruins of the best-preserved baths in Rome. Marvel at their gigantic walls and wander through the monumental rooms of the Caracalla thermal complex. Be an Ancient Roman for an hour as you go through the exact steps of a typical day at the baths in the 3rd century AD. Discover the bizarre range of services offered in this ancient-days-spa for the wellness of body and mind. Appreciate the architectural greatness of Imperial Rome and be surprised by the abilities of the ancient engineers. Learn about the labor-intensive underfloor heating system and find out the techniques used to maintain the desired temperature in every room. Finally, have a close look at the geometric motifs on the beautiful mosaics all over the place.