So, why is climbing Mount Everest so expensive? And given the risks involved, should it cost more than it does? More from So Expensive For many, climbing Mount Everest is the adventure of a lifetime.

The wood is so precious — and so expensive — that the French government heavily regulates its sales through annual auctions of oak forest plots. More from So Expensive Luxury winemakers ...

And despite the premium, many workshops have struggled to stay in business ... by supply-chain issues and shortages. So, what's made cement tiles more expensive? And can new trends sustain ...

We went to Kerala, India, to see how mangosteen is grown and find out what makes it so expensive. More from So Expensive Buying a little over a kilo of fresh mangosteens in the United States can ...

More from So Expensive Calligraphy inkstones, especially elaborately designed ones, can cost over $5,000. While the traditional practice of using an ink stick and inkstone is less common now that ...

So, what makes a successful Seeing Eye dog? And why are they so expensive? This video is audio-described. More from So Expensive Guide dogs from The Seeing Eye are specially bred, trained ...