The Porphyry sarcophagus of Theodoric, Mausoleum of Theoderic, UNESCO World Heritage Site, Ravenna, Emilia-Romagna, Italy, Europe

The Porphyry sarcophagus of Theodoric, Mausoleum of Theoderic, UNESCO World Heritage Site, Ravenna, Emilia-Romagna, Italy, Europe

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

Bullion King Lake at dawn, Porphyry Basin, San Juan National Forest, Colorado, United States of America, North America

Porphyry Basin and Waterfall, San Juan National Forest, Colorado, United States of America, North America

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

Throne room, griffin frescoes, throne, porphyry basin, black round columns, wooden door, Palace of Knossos, Heraklion, Central Crete, Island of Crete, Greece, Europe

Road through red porphyry rocks, Calanche de Piana, Gulf of Porto, Corsica, France, Europe

Klipspringer of the red rocks of Arbatax, porphyry rocks, Tortoli, Province of Ogliastra, Sardinia, Italy, Europe

Antechamber of the throne room, black round columns, porphyry basin, wooden door, Palace of Knossos, Heraklion, Central Crete, Island of Crete, Greece, Europe

Aerial photo, Bruchhauser Steine, four large porphyry rocks located on a mountain, snow, winter, Olsberg, Sauerland, North Rhine-Westphalia, Germany, Europe