White-washed Agios Nikolaos Castle Church with blue sea in background, Ia, Oia, Santorini, Thira, Greece, Europe

aegean sea aegean agios nikolaos architecture attractions attraction background graphic background image backgrounds background balkan peninsula balkans balkan barrenness barren blue blue boiler buildings building caldeira calderas caldera castell castelo castle churches castle church castles castle christianity christian church building churches church coasts coast construction countryside craggy craters crater cupola cyclades islands cyclades defence works defence work defense facility defensive fortification defensive work deserted desolate dome buildings dome building domes dome empty europe's europe famous place filling the picture fira format filling fort castle fortifications fortification fortresses fortress full frame full frame full image full size greece greek islands greek island greek historical historic holiday regions holiday region holiday vacation destination image filling islands island islet jagged kettles kettle landmark landscape photo landscape shot landscapes landscape meager meagre mediterranean area mediterranean region mediterranean mediterranean mountainous mountain peak mountains mountain top mountaintop mountain nature nobody no one no people oceans ocean oia orthodox peaks peak pinnacle place of interest place ragged religions religion religious building rugged rutted sacral building sacred building santorini santorin scenery sea shore sight southeastern europe southeast europe southern europe south europe sparse spot structure summit the dome thira tourist attractions tourist attraction tourist landmark town travel destination travel photography uninhabited vacation region villages village volcanic areas volcanic area volcanic landscapes volcanic landscape volcanic mountain volcanic volcanism volcanoes volcano landscape volcano mountain volcano volcan wallpaper waterfront waters water white washed whitewashed white