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A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g. communism during cold war era, supporting or promoting economic expansion through imperialism, and as a form of internal social control...

The Pitch Lake is the largest natural deposit of asphalt in the world, located at La Brea in southwest Trinidad, within the Siparia Regional Corporation. The lake covers about 40 ha and is reported to be 75 m deep. Pitch Lake is a tourist attraction that attracts about 20,000 visitors annually. It is also mined for asphalt by Lake Asphalt of Trinidad and Tobago...

An artificial reef is a human-made underwater structure, typically built for the purpose of promoting marine life in areas of generally featureless bottom. Artificial reefs may also serve to improve hydrodynamics for surfing or to control beach erosion. Artificial reefs can be built in a number of different methods. Many reefs are built by deploying existing materials in order to create a reef...

Independence Day, commonly known as the Fourth of July, is a federal holiday in the United States commemorating the adoption of the Declaration of Independence on July 4, 1776, declaring independence from the Kingdom of Great Britain...

The Jiaozhou Bay Bridge links the city of Qingdao in Eastern China's Shandong province with the suburban Huangdao District across the waters of the northern part of Jiaozhou Bay. It is 42.5 kilometres (26.4 mi) long and reduces the distance between Qingdao and Huangdao by 31 kilometres (19 mi), cutting the travel time in half (from over 40 minutes to about 20 minutes). Opened on 30 June 2011, the structure is the world's longest bridge over water (there are longer bridges over land)...

The Buenos Aires or General Carrera is a lake located in Patagonia and shared by Argentina, where it is known as Lago Buenos Aires, and Chile, where it is called Lago General Carrera. Both names are internationally accepted. The lake has a surface of 1,850 km² of which 970 km² are in the Chilean Aisén Region, and 880 km² to the Argentine Santa Cruz Province, which makes it the biggest lake in Chile, and the fourth largest in Argentina. In its Western basin, Lake Gen...