Close-up portrait of a Bangladeshi boy cupping his hands and drinking water from a bore hole in Bangladesh, Asia

Tsar cannon, cast in 1586, wtih 890mm bore, Kremlin, Moscow, Russia, Europe

UGANDA Children collecting water from hand-pumped bore well, Gulu. PHOTO by Sean Sprague

UGANDA Children collecting water from hand-pumped bore well, Gulu. PHOTO by Sean Sprague

fun cooling off in bore water tank, Kimberley, West Australia, Australia

Waves breaking on Socoa dyke during storm "Klaus", Basque Country, France

A giant tunnel boring machine of the specialist firm Herrenknecht, length 90 meters, bore diameter more than 10 meters, in front of the construction site of the second tube of the Kaiser Wilhelm Tunnel at the Ediger-Eller district, Rhineland-Palatinate, G

A giant tunnel boring machine of the specialist firm Herrenknecht, length 90 meters, bore diameter more than 10 meters, in front of the construction site of the second tube of the Kaiser Wilhelm Tunnel at the Ediger-Eller district, Rhineland-Palatinate, G

A giant tunnel boring machine of the specialist firm Herrenknecht, length 90 meters, bore diameter more than 10 meters, in front of the construction site of the second tube of the Kaiser Wilhelm Tunnel at the Ediger-Eller district, Rhineland-Palatinate, G

A giant tunnel boring machine of the specialist firm Herrenknecht, length 90 meters, bore diameter more than 10 meters, in front of the construction site of the second tube of the Kaiser Wilhelm Tunnel at the Ediger-Eller district, Rhineland-Palatinate, G

Oil well, Carlsbad, New Mexico, USA

Oil well, Carlsbad, New Mexico, USA

Oil well, Carlsbad, New Mexico, USA

High waves, splashing spray, lighthouse during storm, Porto, Portugal, Europe

Waves breaking on Socoa dyke during storm "Klaus", Basque Country, France

Old clock on a wall, Bore Street, Lichfield, Staffordshire, England, United Kingdom, Europe

Relief of Mary of Teck, 1867-1953, on a building, Bore Street, Lichfield, Staffordshire, England, United Kingdom, Europe

Pub sign "George IV", Bore Street, Lichfield, Staffordshire, England, United Kingdom, Europe

Geothermal power plant borefield. Waitakei, New Zealand.

Forest fire north of Fairbanks, Alaska.

Aerial view of bore tide coming into Turnagain Arm of Cook Inlet, South-central Alaska; Hope, Alaska, United States of America