Orinoco
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The Orinoco is one of the longest rivers in South America at 2,250 kilometres (1,400 mi).
Orinoquia Bridge near Ciudad Guayana, Venezuela
Orinoco in Mariusa National Park (Delta Amacuro)
Orinoco at its confluence with the Caroní River (lower left)
Rapids of the Orinoco, near Puerto Ayacucho airport, Venezuela
Alexander von Humboldt
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Friedrich Wilhelm Heinrich Alexander von Humboldt was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography, while his advocacy of long-term systematic geophysical measurement pioneered modern geomagnetic and meteorological monitoring.
Humboldt as a boy with his widowed mother, Maria Elisabeth (Colomb) von Humboldt
The Tegel Palace, Berlin, where Alexander and his brother Wilhelm lived for several years
Schiller, Wilhelm, and Alexander von Humboldt with Goethe in Jena