You may be thinking of the Trans-antarctic Mountains.
You may be thinking of the Trans-Antarctic mountain range that divides east and west Antarctica.
You may be thinking of the Trans-Antarctic mountains.
They live in WEST NOT east.
The answer is that west antarctica! ;)
East and West Antarctica are separated by an imaginary line, so they are neighbors.
Antarctica is a continent of approximately 14,000,000 sq km. The Transantarctic Mountains divide Antarctica into east and west. East Antarctica constitutes the bulk of the land mass and is the oldest part of the continent. West Antarctica is the newer and smaller area which includes the Antarctic Peninsula and consists of four land areas separated by deep water.
West Antarctica is south of the Americas, part of what is normally called the Western World. East Antarctica is mostly south of Asia, sometimes known as the East. Australia is north of the edge of East Antarctica, so its western side is north of East Antarctica, and its eastern side is north(ish) of West Antarctica.
The Antarctic is divided, east and west, by the Transantarctic Mountain Range.
You may be thinking of East Antarctica and West Antarctica.
a line
The prime meridian
In Manhattan, the main dividing avenue (not street) that divides east and west is 5th Avenue.