* Hudson River: In 1609, Henry Hudson explored and mapped the Hudson River, giving Europeans their first knowledge of the river and its importance as a transportation route.
* Hudson Bay: In 1610, Hudson set out on his third voyage, exploring what is now known as Hudson Bay in Canada. He was searching for the Northwest Passage, a trade route to Asia across North America. Although he didn't find the passage, Hudson's exploration provided valuable information about the geography and resources of the region.
* Spitsbergen: In 1607, during his first voyage, Hudson explored and mapped Spitsbergen, an island in the Arctic Ocean. He was searching for a Northeast Passage to Asia across the Arctic Ocean, but ice conditions made it impossible to proceed further.
* Jan Mayen: In 1607, Hudson also discovered the island of Jan Mayen, a volcanic island in the Arctic Ocean.
These discoveries made by Henry Hudson significantly contributed to European knowledge and exploration of North America and the Arctic region.