Asia landmarks are the largest and most populated continent on Earth. It is mostly in the northern and eastern regions of the planet. It shares the continent of Eurasia with Europe and the continent of Afro-Eurasia with both Europe and Africa. In general, the Pacific Ocean is to the east of Asia, the Indian Ocean is to the south, and the Arctic Ocean is to the north.
There is no clear physical or geographical line between Asia and Europe, so the border between them is based on history and culture. It is a bit random and has changed since it was first thought of in ancient Greece. Eurasia is split into two continents because of cultural, linguistic, and ethnic differences between the East and the West. Some of these differences are more like a spectrum than a sharp line.
Most people agree that Asia is separated from Africa by the Suez Canal, the Turkish Straits, the Ural Mountains, and the Ural River to the east, and from Europe by the Caucasus Mountains, the Caspian Sea, and the Black Sea to the south.