Australia and Antarctica are the smallest continents in terms of land area.
The country with the largest land mass in Europe is Russia.
Switzerland is a country in Europe. I don't understand what you mean by "land or land mass".
Russia is the largest country in the world.
Canada has the largest land mass in the western hemisphere.
China has a land mass of approximately 9.6 million square kilometers, making it the fourth largest country in the world by land area.
Seychelles
Australia has the largest percent of its land mass on an island, as it is both a country and a continent. Australia's entire land mass is situated on the Australian continent, which is the world's largest island.
Asia and Europe both share the same land mass.
USA
Saudi Arabia has most land mass of Middle East countries.
Canada has the second largest land mass in the world, after Russia.