Gavin Hellier / Cathedral of the Assumption of the Virgin, built between 1880 and 1886 is the main symbol of the city with it's gold domes and stained glass windows, illuminated at dusk, Varna, Black Sea Coast, Bulga...

Gavin Hellier / Cathedral of the Assumption of the Virgin, built between 1880 and 1886 is the main symbol of the city with it's gold domes and stained glass windows, Varna, the chief city of the Black Sea, Bulgaria,...

David Shale / Deepsea Glass Sponge (Hexactinellida). Collected from coral sea mount near Dragon vent field on SW Indian Ridge, Indian Ocean.

David Shale / Gravid female Glass / Ghost shrimp on Glass sponge (Hexactinellida) from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

David Shale / Glass sponge (Hexactinellida) view through mesh of ostium to glass / ghost shrimps inside, from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

David Shale / Glass sponge (Hexactinellida) with Glass shrimps visible inside, from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

David Shale / Male and female Glass shrimps on Glass sponge (Hexactinellida) from coral seamount, SW Indian Ocean, Atlantis Bank, depth around 700m, December 2011

David Shale / Male and female Glass shrimps on Glass sponge (Hexactinellida) from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

David Shale / Gravid female Glass shrimp from glass sponge, from coral seamount, SW Indian Ridge, Indian Ocean, December 2011

Steven Kazlowski / Close up of a glass-like chunk of ice from Columbia Glacier, one of the fastest moving glaciers in the world, Chugach National Forest, Prince William Sound, Alaska, USA. The Columbia Glacier is now th...

Juergen Freund / Coconut / veined octopus (Amphioctopus marginatus) using a discarded glass tumbler as its home, Batangas, Philippines.

Juergen Freund / Coconut / veined octopus (Amphioctopus marginatus) using a discarded glass tumbler as its home, Batangas, Philippines