Image: Wikimedia CommonsThe world’s smallest island with a building on it is the Bishop Rock, a skerry off the coast of Cornwall. The islet is 46 by 16 meters, and the tower’s base is 10 meters across. Before the installation of a helipad in 1976, visitors would rappel from the tower’s base to waiting boats.

Image: Wikimedia CommonsAmong the Thousand Islands at the head of the Saint Lawrence River is the smallest inhabited island in the world, known as “Just Room Enough.” It accommodates a single house.

Image: Wikimedia CommonsThe “Smallest House in Great Britain” stands on the quay in Conwy, Wales. Built in the 16th century, it has a floor area of 3.05 by 1.8 meters.

Image: Wikimedia CommonsBuilt in 1958, the Little Church in Drumheller, Alberta, is available for ceremonies. It seats six.