New York City is the most densely populated city in America by far. But below everyone's feet is a network of utility infrastructure that keeps the city buzzing along.
Hidden in bustling Manhattan is a hidden treehouse waiting to be discovered. I'll give you a clue, you need to head to the Botanical Garden 6BC in the East Village.
Venice is a miracle of engineering. It's a floating city that many thought could never work but its still here today but how?
New York may be the hub of world business and full of modern marvels but if you look at the roof tops of many buildings you'll see Wooden Water Towers. But why?
The Eiffel Tower is iconic in Paris but did you know there is something hidden at the very top of the famous tower? An apartment!
Everyone thinks of Paris, the city of lights, as being so romantic. But deep down the city was built on human bones which you can still see today.
Using a tilt-shift lens, photographer Joerg Daiber, managed to turns Austria's Stubai Glacier into a miniature world with skiers and more enjoying it.
There's a lot of gold in the underground vaults of the Bank of England. Lets go deep inside and see just how much.
400 years ago the biggest city in Japan was in danger of collapse. So what did the people of Japan do to save the city and what can we learn from it?
Niagara Falls is one of the world's more impressive sights. But there are things about it most people don't know.
Imagine capturing Costa Rica for the internet to see. Well that's what famous GeoGuessr Trevor Rainbolt did with Google Street View Car.
With temperatures rising globally places that were once covered in snow and ice are now revealing greener, fertile lands. The International Tundra Experiment looks at what the future holds.
When you gotta go you gotta go. But what happens when you end up having to use America's Weirdest Public Restrooms? Lets see what you could be facing.
Imagine if you took a square mile of earth and pull it out. You would see a column of earth stretching 6731 km or 3958 mi high into the sky.
If you visit Horsetail Fall in Yosemite National Park at the right time in February you might be lucky enough to see the 'Firefall' when the light is just right.
