Alaska is one of the two U.S. states not bordered by another state, Hawaii being the other. It is the only non-contiguous state in North America; about 500 miles (800 km) of Canadian territory separate Alaska from Washington. Alaska is thus an exclave of the United States that is part of the continental U.S. but is not part of the contiguous U.S. (The other two exclaves of the United States are the Northwest Angle of Minnesota, and Point Roberts, Washington.) Alaska is also the only mainland state whose capital city is accessible only via ship or air. No roads connect Juneau to the rest of the state. It is bordered by Yukon Territory and British Columbia, Canada to the east, the Gulf of Alaska and the Pacific Ocean to the south, the Bering Sea, Bering Strait, and Chukchi Sea to the west, and the Beaufort Sea and the Arctic Ocean to the north. Alaska is the largest state in the United States in terms of land area (it is larger in area than all but 18 of the world's nations) at 570,380 square miles (1,477,261 km²), over twice as large as Texas, the next largest state.