He is interested in the history of the Old World.

His grandfather fought in the Second World War.

The charm of his novel is its unique worldview.

His worldview is very unique, always providing a new perspective.

He likes to take a walk in the park at dusk.

New World monkeys live in South America.

The World Health Organization is working to improve public health worldwide.

The World Trade Organization is an important organization that sets the rules for international trade.

She is conducting research on the world's oldest profession.

Old World monkeys primarily inhabit Africa and Asia.