You can step back in time when you visit the pre-Columbian sites of Mexico City,

but you'll also find its Aztec culture is alive and well in the neighborhood of Sochi Milco.

It's a vibrant, active community that still exists today.

Look at what we're learning about life in the first century Roman Empire from what they're finding at Pompeii.

You feel as if people had just left a few minutes ago, and in truth, it's 2,000 years.

The director of the Pompeii Archaeological Park tells us how we can witness life in a Roman

city as if it was yesterday, and consider how much of an influence its neighbors have had over the centuries

in fashioning today's nation of France.

Immigration, and indeed not just the people, but of ideas and values and things, has a huge

history in France and is an integral part of what we think of as French identity.

Time travel with us for the hour ahead.

It's Travel with Rick Steves.

We're getting in touch with people who came before us

today on Travel with Rick Steves.

The director of Italy's Pompeii Archaeological Park returns

to share more of what they're uncovering

about first-century

life in the Roman Empire.

And historian Cullen Jones tells us how the historically porous borders of France have brought

in immigrants and influences over the centuries that have made France into the kind of country

the whole world wants to visit.

Let's start today's travel with Rick Steves with David Lita in Mexico City.

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