Ocean currents in the north Atlantic.

A map of the Arctic, the red line indicates the 10°C isotherm in July, commonly used to define the Arctic region border.

The Mid-Atlantic Ridge is a mostly underwater mountain range of the Atlantic Ocean and Arctic Ocean.

The Drake Passage between South America and Antarctica.

The Gulf of Mexico in 3D perspective using a GIS.

Shaded relief map of the Mediterranean Sea.

The routes followed by the principal explorers of Hudson Bay, from 1497 up to 1905.

The Strait of Hormuz separates Iran to the north and the Musandam Governorate of Oman and the United Arab Emirates to the south.

Detail of a United States NOAA chart, showing a harbor area in Puerto Rico.

Map of the McMurdo Sound, Antarctica.