The Problem With Concrete

Cities
This video is in partnership with Bill and Melinda Gates.

Tasty Tries 3 Must-Have Meals in Vancouver

Cities
Tasty and American Express Pay It Plan It Present Friend In Town.

Why Are Wild Parrots Disappearing in Miami?

Cities
In Miami, conservationist Daria Feinstein is on a mission to save the beautiful Blue-and-yellow Macaw-before it's too late.

See How Termites Inspired a Building That Can Cool Itself

Cities
How do you cool a building without air conditioning?

Rooftop POV Escape from Hong Kong security!

Cities
These Daredevils Run From Security And Leap Across Rooftops In Hong Kong

Why Cities Exist

Cities
More than 90% of the richest countries population lives in the cities. Here is why?

New York: America's MEGACITY

Cities
The story of New York City, America's megalopolis.

Cairo: MEGACITY of the Middle East

Cities
Cairo, Egypt is the capital of the Arab world and the largest desert city on the planet. For centuries it has thrived alongside the Nile, the world's longest river.

The science of smog - Kim Preshoff

Cities
On July 26, 1943, Los Angeles was blanketed by a thick gas that stung people's eyes and blocked out the Sun. Panicked residents believed their city had been attacked using chemical warfare. But the cloud wasn't an act of war. It was smog. So what is this thick gray haze actually made of? And why does it affect some cities and not others? Kim Preshoff details the science behind smog.

The rise and fall of the Berlin Wall - Konrad H. Jarausch

Cities
On August 13, 1961, construction workers began tearing up streets and erecting barriers in Berlin. This night marked the beginning of one of history's most infamous dividing lines: the Berlin Wall. Construction continued for a decade as the wall cut through neighborhoods, separated families, and divided not just Germany, but the world. Konrad H. Jarausch details the history of the Berlin Wall.

The World's Fastest Growing MEGACITY

Cities
Dhaka, Bangladesh - the capital of the most densely populated major country in the world - is also the planet's fastest growing city.

How to Fix Traffic Forever

Cities
More lines = more traffic

The real reason streetcars are making a comeback

Cities
It's mostly about economic development.

MEGACITIES: Crisis in CDMX

Cities
Mexico's vast capital - Ciudad de Mexico, the largest city in the Americas - is threatened by a severe water crisis.

Superblocks: How Barcelona is taking city streets back from cars

Cities
Modern cities are designed for cars. But the city of Barcelona is testing out an urban design trick that can give cities back to pedestrians.

How ancient Romans made stronger concrete than today

Cities
Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans' secret concrete recipe that has maintained so many of its now-ancient buildings.

The History of Hong Kong

Cities
Its name means "fragrant harbor" in Chinese, but it could also mean city of change. This is the story of Hong Kong.

London's New Year's Eve Fireworks Is So Glorious And Beautiful

Cities
Happy New Year everyone! Wish you all a bright and fruitful 2017.

The Simple Solution to Traffic

Cities
The way we can make traffic disappear.

GoPro: Paragliding Over Rio de Janeiro

Cities
Soar over the coastline of Brazil's Sao Conrado beach with two paragliding amigos, Nader Couri and Joe da Silva.

Real life sunken cities

Cities
Though people are most familiar with Plato's fictional Atlantis, many real underwater cities actually exist. Peter Campbell explains how sunken cities are studied by scientists to help us understand the lives of our ancestors, the dynamic nature of our planet, and the impact of each on the other.