Sorted by Name
Structure Name |
Location |
South Australia |
|
Northern Territory, Australia |
|
Oklahoma, U.S.A. |
|
Algeria |
|
Chad |
|
Mauritania |
|
Brazil |
|
Alaska, U.S.A. |
|
Arizona, U.S.A. |
|
Montana, U.S.A. |
|
Russia |
|
Kazakhstan |
|
Ukraine |
|
Ghana |
|
Northern Territory, Australia |
|
Libya |
|
Ontario, Canada |
|
Michigan, USA |
|
Argentina |
|
Peru |
|
Saskatchewan, Canada |
|
Brazil |
|
Quebec, Canada |
|
Virginia, U.S.A. |
|
Yucatan, Mexico |
|
Kazakhstan |
|
Russia |
|
Northern Territory, Austrlia |
|
Quebec, Canada |
|
Quebec, Canada |
|
Wyoming, USA |
|
Brazil |
|
Western Australia |
|
Quebec, Canada |
|
South Australia |
|
Missouri, U.S.A. |
|
Western Australia |
|
Missouri, U.S.A. |
|
Iowa, U.S.A. |
|
Saskatchewan, Canada |
|
Sweden |
|
Illinois, U.S.A. |
|
India |
|
Latvia |
|
Wyoming, U.S.A. |
|
Alberta, Canada |
|
Saskatchewan, Canada |
|
Russia |
|
South Australia |
|
Tennessee, U.S.A. |
|
Northern Territory, Australia |
|
Norway |
|
Illinois, U.S.A. |
|
Western Australia |
|
Wisconsin, U.S.A. |
|
Western Australia |
|
Northern Territory, Australia |
|
Saskatchewan, Canada |
|
Northern Territory |
|
Sweden |
|
Russia |
|
Chad, Africa |
|
Nunavut, Canada |
|
Kansas, U.S.A. |
|
Northern Territory, Australia |
|
Western Australia, Australia |
|
Ontario, Canada |
|
Sweden |
|
Quebec, Canada |
|
Estonia |
|
Ukraine |
|
Finland |
|
Russia |
|
Jordan |
|
Estonia |
|
South Africa |
|
Russia |
|
Ukraine |
|
Russia |
|
Egypt |
|
Russia |
|
Tajikistan |
|
Estonia |
|
Finland |
|
Russia |
|
Northern Territory, Australia |
|
Indiana, U.S.A. |
|
Finland |
|
Botswana |
|
Russia |
|
Quebec, Canada |
|
Finland |
|
Queensland, Australia |
|
Northern Territory, Australia |
|
Sweden |
|
Russia |
|
Belarus |
|
India |
|
Democratic Republic of Congo |
|
Finland |
|
Russia |
|
Sweden |
|
Quebec, Canada |
|
Iowa, U.S.A. |
|
Saskatchewan, Canada |
|
Texas, U.S.A. |
|
Northern Territory |
|
Kentucky, U.S.A. |
|
Sweden |
|
Russia |
|
Newfoundland/Labrador, Canada |
|
Lithuania |
|
Norway |
|
Nova Scotia, Canada |
|
Chile |
|
Poland |
|
South Africa |
|
South Australia |
|
Estonia |
|
North Dakota, U.S.A. |
|
Quebec, Canada |
|
Northwest Territories, Canada |
|
Libya |
|
Ukraine |
|
Texas, U.S.A. |
|
Algeria |
|
Finland |
|
Nicaragua |
|
Western Australia |
|
Northwest Territories, Canada |
|
Russia |
|
Quebec, Canada |
|
Russia |
|
Russia |
|
India |
|
North Dakota, U.S.A. |
|
Brazil |
|
Germany |
|
Argentina |
|
Norway |
|
France |
|
Wisconsin, U.S.A. |
|
Namibia |
|
Ukraine |
|
Finland |
|
Finland |
|
Manitoba, Canada |
|
New Mexico , U.S.A. |
|
Brazil |
|
Saudi Arabia |
|
Ohio, U.S.A. |
|
Brazil |
|
Western Australia |
|
Kazakhstan |
|
Texas, U.S.A. |
|
Russia |
|
Sweden |
|
Ontario, Canada |
|
Russia |
|
Finland |
|
Western Australia |
|
Alberta, Canada |
|
Germany |
|
Northern Territory, Australia |
|
Russia |
|
Ontario, Canada |
|
Finland |
|
Finland |
|
Finland |
|
Mongolia |
|
Algeria |
|
Mauritania |
|
Ukraine |
|
Algeria |
|
Queensland, Australia |
|
South Africa |
|
Victoria Island, Arctic Canada |
|
Sweden |
|
Utah, U.S.A. |
|
Brazil |
|
Western Australia |
|
Lithuania |
|
Saskatchewan, Canada |
|
Brazil |
|
South Africa |
|
Saudi Arabia |
|
Ontario, Canada |
|
Tennessee, U.S.A. |
|
Manitoba, Canada |
|
Alabama, U.S.A. |
|
Alberta, Canada |
|
Western Australia |
|
Western Australia |
|
China |
|
Western Australia |
|
Western Australia |
|
Ukraine |
|
Ukraine |
|
Kazakhstan |