This historic spot was where America's involvement in the Vietnam War officially came to an end.

One of the largest Chinese cemeteries outside of China spent years overgrown and forgotten.

This fountain was once heralded as the largest in the world.

Two panes of the massive Cold War artifact are on display at the National University of Singapore.

A faithful reproduction of Al-Jazari's enormous water clock.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.