What looks like the end of the Earth is really just the end of Australia.
The Bunda Cliffs of Nullarbor Plain, Southern Australia, form part of the longest uninterrupted line of coastal cliffs (62 miles long) in the world. They literally look like someone sawed off the bottom of Australia with a jigsaw.
These limestone sea cliffs, which are 200 feet to 400 feet high, drop off into the Great Australian Bight, one of the most pristine ocean environments on Earth.
Limestone caves started accumulating in Australia 50 million years before the continent split from Antarctica. The high cliffs formed as the seas receded between the continents.
The razor-sharp cliffs also head 7 centimeters north every year, thanks to continental drift.
PS: The Bunda Cliffs are not to be used as evidence for flat Earth believers.