Turkey has most of its territory in Asia, but a small part in Europe across the Bosporus strait.
Russia is the largest transcontinental country in the world, with most of its land in Asia, but a significant part in Europe as well.
Kazakhstan is the largest landlocked transcontinental country, with most of its territory in Central Asia, but a small part in Eastern Europe.
Algeria is the largest country in Africa by area, and has a small part of its territory in the Spanish exclave of Ceuta on the Mediterranean coast.
Sudan is the third-largest country in Africa by area, and has a small part of its territory in the Sinai Peninsula, which is considered part of Asia.