01: Hong Kong | World’s Busiest Cities

02: Mexico City | World's Busiest Cities

In Mexico City, Dan Snow, Anita Rani and Ade Adepitan uncover the hidden systems and armies of people that help run this sprawling m...

03: Moscow | World's Busiest Cities

Dan Snow, Anita Rani and Ade Adepitan reveal the hidden systems and armies of people that help run Moscow, a city forged by power and pol...

04: Delhi | World's Busiest Cities

Dan Snow, Anita Rani and Ade Adepitan visit Delhi. Anita discovers how this growing city feeds itself. Ade gets a taste of life as a porte...

Accommodation in the City | World's Busiest Cities

Ade Adepitan visits a type of shared accommodation in Hong Kong that many are forced to live in due to extortionate housin...

Agriculture in the City | World's Busiest Cities

Dan Snow investigates the history of residents of Mexico City since the Aztecs.

Building upwards | World's Busiest Cities

Earthquake protection in Mexico City's building design.

China and Hong Kong | World's Busiest Cities

Dan Snow investigates Hong Kong's precarious relationship with China.

Crime | World's Busiest Cities

Dan Snow investigates how Mexico City's police work from the sky.

Earthquake prediction | World's Busiest Cities

The vital importance of earthquake prediction in Mexico City.

Earthquake protection | World's Busiest Cities

Dan Snow investigates the devastating impact that earthquakes are having on the city. He visits an organisation that save peop...

Free Trade | World's Busiest Cities

The history of HSBC and banking in Hong Kong.

Globalisation and Immigration | World's Busiest Cities

Anita Rani visits Chungking Mansions, a culturally diverse location in Hong Kong, where people from over hundred count...

Government planning and building in New Delhi | World's Busiest Cities

The impact of central planning on infrastructure spending in Delhi.

Hong Kong's growth | World's Busiest Cities

Dan Snow views Hong Kong from the sky and witnesses how the city's growth is slowly connecting it to mainland China.

Housing in the City | World's Busiest Cities

Dan Snow investigates post-war communal living during the Soviet Union.

Infrastructure spending | World's Busiest Cities

Japanese government spending on Subway system in Delhi

Migrant Workers | World's Busiest Cities

The experience of live-in domestic workers in Hong Kong.

Overcrowding | World's Busiest Cities

Ade Adepitan investigates the extortionate real estate prices of central Hong Kong.

Pollution Problems | World's Busiest Cities

How Mexico City is tackling pollution.

South China Sea Trade | World's Busiest Cities

Hong Kong's busy port is a vital gateway to trade in the South China Sea.

Restoring Our Rivers | Our Changing Planet

Liz Bonnin and Ade Adepitan investigate two ambitious river restoration projects: in the US, the largest dam removal in the world,...

01: The Solomon Islands and Australia | Climate Change: Ade on the Frontline

Ade Adepitan sees the damage that climate change is causing, and finds out how we can fight it -...

Sustainable tourism in Dubai | The Travel Show

Ade Adepitan explores Sustainable City, an almost completely self-sufficient suburb that uses solar and grows its own food.

Britain's picky fruit and vegetables preferences | What Britain Buys and Sells in a Day

Ed finds out why Britons are so picky with their food and how this affects where out ...

Episode 2 | Africa with Ade Adepitan

Ade Adepitan embarks on the second leg of his journey around Africa. This time he is in Central Africa, travelling from Gabon to Uganda,...

South China Sea Trade | World's Busiest Cities

Hong Kong's busy port is a vital gateway to trade in the South China Sea.

Episode 1 | New York: America's Busiest City

Anita Rani, Ade Adepitan, Ant Anstead and Dan Snow try commuting New York-style, joining 5.5 million commuters on the iconic Sta...

The Secret Life of Your Clothes | This World

Documentary in which Ade Adepitan explores the afterlife of some of the clothes we donate to charity shops. He follows the trail...

Ade Adepitan, Paralympic Champion | Spark

Ade Adepitan, a Paralympian volleyball champion, could not use his legs, but he never lost his determination to make it as an athlete.