Modern culture threatens a centuries-old way of life that has helped Greeks live far longer than most Americans.

Weir treks to the magnificent Taj Mahal in India and gains valuable insight into the conservation efforts to save the endangered Bengal tiger.

The border conflicts in Jordan and Israel are causing the Dead Sea to dry up and disappear, but efforts are underway to revive it.

The city of Venice is in danger of sinking from the rising sea levels. Constant floodings are a big burden on the floating city, so Bill talks to the local experts.