An object is well known worldwide when it is among the most widely recognized places on the earth. This means it should be familiar to people from many different backgrounds in multiple countries and continents. Its recognition may derive from any noteworthy characteristic, especially for its aesthetics, history, or visibility.

The recognition extends across national and continental boundaries and different audiences. Awareness confined mainly to one country belongs to national recognition instead.

Recognition concerns familiarity with the place. It is distinct from formal landmark protection, which depends on a government designation.