Olympus is notable in Greek mythology as the home of the Greek gods, on Mytikas peak. It is also noted for its exceptional biodiversity and rich flora. It has been a National Park, the first in Greece, since 1938. It is also a World Biosphere Reserve. Every year, thousands of visitors admire its fauna and flora, tour its slopes, and climb its peaks. Organized mountain refuges and various mountaineering and climbing routes are available. The usual starting point for climbing Olympus is the town of Litochoro, on the eastern foothills of the mountain, 100 km (62 mi) from Thessaloniki.

Platamonas Castle is a castle of the Frankish rule, built in the fortified town of the Middle Byzantine period, southeast of Mount Olympus, a short distance from the present town of Platamonas, in a strategic position that controls the Macedonia - Thessaly road. It is the best preserved castle of north-central Greece, with its imposing central tower, which dominates the National Road.