Beneath these hills the surface of the island falls lower, and several hills in the form of amphitheatres extend their bases as far as the sea.
It is inferior in size only to the Colosseum and the amphitheatres of Capua and Verona, measuring about 153 by 130 yds.
Deep and narrow canons are common, and, at higher levels, glaciers, carved out amphitheatres, or " cirques " and " U "-shaped troughs.
The literature of the ancient Hebrews abounds in allusions to the lion; and the almost incredible numbers stated to have been provided for exhibition and destruction in the Roman amphitheatres (as many as six hundred on a single occasion by Pompey, for example) show how abundant these animals must have been within accessible distance of Rome.
Roman tastes now came in; Roman buildings, especially amphitheatres, arose.
Much of the ruggedness and beauty of the mountains is due to the erosive action of many alpine glaciers that once existed on the higher summits, and which have left behind their evidences in valleys and amphitheatres with towering walls, polished rock-expanses, glacial lakes and meadows and tumbling waterfalls.
Local glaciation has carved the higher levels of this range into a maze of amphitheatres containing lakes, separated from each other by aretes and alpine peaks.