Thousands of islands exist on earth. But, do you know which is the smallest one of all? If not. Then, it is Bishop Rock island, in United Kingdom, according to Guiness Book of World Record.
The rock island has a depth of 45 meter. The island also boasts a lighthouse which was built in 1847. It was lighted for the first time on September 1, 1858. The lighthouse on the Bishop Rock island is also called ‘King of the lighthouses’.