Tomb (Mastaba) of Seshem Nefer Theti, Great Pyramids of Giza, UNESCO World Heritage Site, Giza, Egypt, North Africa, Africa

Mastaba (Tomb) of Seshem Nefer Theti, Giza Pyramid Complex, UNESCO World Heritage Site, Giza, Egypt, North Africa, Africa

Tomb (Mastaba) of Seshem Nefer Theti, Great Pyramids of Giza, UNESCO World Heritage Site, Giza, Egypt, North Africa, Africa

Stromatolites, one of the most ancient life forms on earth, mats of micro-organisms that become rock-like structures through accretion of calcium carbonate, in highly saline lagoons like here in Lake Thetis, Cervantes, Dandaragan Shire, Western Australia, Australia, Pacific

Stromatolites, one of the most ancient life forms on earth, mats of micro-organisms that become rock-like structures through accretion of calcium carbonate, in highly saline lagoons like here in Lake Thetis, Cervantes, Dandaragan Shire, Western Australia, Australia, Pacific

Restaurant ship Thetis, Essen, Kettwig, Ruhr Valley Ruhr, Northrhine Westphalia, Germany

Red-necked Pademelon (Thylogale thetis), Lamington National Park, Queensland, Australia

Cafe and restaurant on the ship Thetis on the Ruhr river, Essen, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe