mount etna, old observatory on black lava plains with distant sea view, sicily

black crater craters debris etna italy landslide lava main mount observatory sicily sky smoke volcanic volcano science nature construction geology building mountain landscape travel stone rock park magma desert scenic scenery mediterranean path houses adventure island outdoor landmark old covered plains distant sea view historic etna#39aph39#s stark contrast structure dark hint background creates dramatic unique observatory mountetna sicily italy lava volcano black volcanic plains sea distant historic landscape nature scenery travel outdoor architecture contrast geology adventure exploration coastline view dramatic structure eruption terrain mediterranean history ancient rugged volcanicplains landscapephotography destination volcaniclandscape remote beauty tranquility seaview environment travelphotography