<p>We head west along America's famed Route 66. As the road celebrates its 100th birthday, Victoria Craig finds out whether the pull of neon-drenched nostalgia is still attracting visitors and whether new investment can secure the future of the towns that depend on it.</p>

Nepal: In the shadow of a glacier

The best documentaries from the BBC World Service. Hear the voices at the heart of global stories. Where curious minds can uncover hidden truths and make sense of the world.
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