If you've ever thought of visiting Antarctica, there's a few things you need to know.

It's the highest, driest, windiest, coldest land on Earth.

It is absolutely inimical to human life and beyond the coasts to life itself.

Julian Sancta reports on what it's like to reach the icy world of penguins and researchers

and how increases in tourism and climate change are impacting Antarctica.

Have you ever seen a forest migrate?

Zach St. George tells us how and why they do just that.

The disaster would be if trees didn't move and if the ranges of trees didn't move.

And we'll hear what attracts Romans, poets and a-list celebrities to the lakes of northern Italy.

The water is coming fresh from the dolomites from the glacier, so you can swim in the lake

every day and spotlessly clean.

La Dolcevita is what is famous.

Antarctic tourism, the journeys of trees and the villas and views of Italy's lake district.

It's just ahead on travel with Rick Steves.

In a moment, Julian Sancta tells us what it was like to voyage to Antarctica

while researching his book about what the Belgium expedition was getting into

at the end of the world, at the end of the 19th century.

We'll also see what trees can teach us as changing climate conditions speed up their migration into new territories.

And it's been a popular retreat since Roman times.

Friends who live in Italy's lake district described the region's appeal just an hour away from the bustle and hustle of Milan.

Antarctica.

It's captured the imagination of authors, explorers and scientists for ages.

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