The 36-ton blocks do not touch and were installed the way the ancient Egyptians built the pyramids, by tipping blocks into sand.

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"Now here's a site, the Sphinx and the Pyramids, probably the most famous ancient site in the worldno map, " Ludwig says.

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"Now here's a site, the sphinx and the pyramids, probably the most famous ancient site in the world no map, " Ludwig says.

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Along the way, he exposes readers to early British civilisation, Egyptian pyramids, ancient Assyria and the Kingdom of Benin in the 13th century.

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My love of travel began with childhood visits to Mexican ruins and beaches, and I feel the U.S. is fortunate, not cursed, to be so close to a place that offers jungles, deserts, volcanoes, beaches, coral reefs, ancient pyramids, living pre-European cultures and some of the world's most satisfying cuisines.

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