Why do some of the national parks in the United States resemble the European Alps? Geologist Dr. Robert Darga answers this question.

Maggie decides to intervene, and finally the girls are encouraged to stop sulking and talk about their issues.

It turns out that Rachael is also unhappy, and Maggie is feeling more and more uncomfortable about being in the middle of things.

Living together can be challenging, even for good friends. Maggie, as a guest and friend, can't help but notice that Julia is feeling frustrated about something.

The three friends have breakfast together, do some catching up, and muse about the future. Who knows, will they all end up living together in Berlin one day?

The three girls are happy to be reunited, and Maggie gets settled into the apartment. She feels lucky to have such good friends.

Julia and Rachael are young American women living in Berlin. Maggie, a friend of theirs from the United States, is coming for a visit. They are pretty excited about Maggie's arrival.

Annette sharpens her skydiving skills in a vertical wind tunnel in Slovakia. The wind reaches a speed of 180 kilometers per hour (112 mph).

Annette takes us on a tour of her conversion van named Hermes, a van that has been, in her case, converted into a living space. In addition to the basics, she has equipped the van with many of the comforts of home.

Annette gives us some tips on using yoga moves to give our muscles a break when on a road trip.

Greentraveller's Richard Hammond shows you some of the loveliest and greenest spots in London, and gives some tips for navigating through the city.

Yabla's Lauren takes us on tour of Oxford Street, the busiest street in central London!

Soho is an area of the City of Westminster and part of the West End of London. Long established as an entertainment district, for much of the 20th century Soho had a reputation as a base for the sex industry in addition to its night life and as a location for the headquarters of leading film companies.

Jessica takes us on a walk through Prospect Park. She stops several times to point out and describe various objects along the way.

Jessica is planning a week-long vacation and wants to rent a cabin. Let’s see if the travel agent has an offer that meets her needs.