Visitors to Old Delhi can find the noise, heat and pungent smells confronting.

Old Delhi's amazing bike tour

We cycle past open-air butchers' shops where skinny men in ragged dhotis are hacking up bloody carcasses.

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Humayun's Tomb was declared a UNESCO world heritage site in 1993.

The other Taj Mahal

After 200 years of neglect, it's finally been recognised as one of the world's most beautiful buildings.

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