The thermal springs of Evros
Whether in need of bodily or spiritual renewal or you just craving a hot bath, take a pause at Trajanopolis. The brick-domed hostel for world-weary travellers was reputed for the healing powers of the springs even back in the 14th century. Take note of the piping in the walls, an object lesson in central heating.
A trip to the Cyclops’ cave
You can visit one of the numerous caves of the Cyclops at the modern small port of Makri.
Air conditioning in antiquity
In Evros, in the ancient coastal town of Mesembria-Zone (7th century BC), the inhabitants buried amphorae under their living rooms to combat the humidity, a sort of ancient air conditioning.
Source: https://www.discovergreece.com