Yes, there are unclaimed islands, often referred to as "terra nullius," which are not owned by any country. An example is Bir Tawil, a small strip of land between Egypt and Sudan that neither country claims due to a border dispute. Additionally, some remote islands in the South Pacific and Arctic regions remain uninhabited and unclaimed. However, many of these areas may still be subject to international treaties and laws.
Mexico owns Catalina Island
The Antilles are a series of islands in the Caribbean, no one country owns them. Each island is a country.
In Soviet Russia, lennox island owns whom?
Ellis Island is federally owned. No one individual has the papers to that particular piece of land.
Jonny Depp owns an island in the Carribean. Diana Ross owns a french island. Mel Gibson owns an island off Fiji.
No one. Land on Vancouver Island can be bought and sold freely. There are thousands of individuals and corporations owning pieces of the island, but no one owns the whole thing. If your thinking of national teritorial boundaries though, then Canada has sovereignty over Vancouver Island. In fact, Victoria, the capital of Canada's third most heavily populated province, is on Vancouver Island.
The Wynn Hotel is not the only hotel that Steve Wynn owns. He owns other hotels that are located in Las Vegas in addition to the Wynn. One of the other hotels that he owns is the Treasure Island Hotel and Casino.
Smith island is the property of India.
Canada
USA
Denmark
Argentina