The Atlantis uses true-to-life colours to illustrate features on land and in the ocean alike. The land map shows five key vegetational features — grasslands, forest, desert, tundra and glacial ice sheet — while the ocean map reveals the continental shelf, ocean depths in feet, basins, underwater mountains, ridges, trenches, seamounts and undersea volcanoes. A sturdy metal base with gyro-matic mounting and numbered full meridian swings 360 degrees for an unobstructed view. Also recommended as a reference for visually impaired users.