Green makeover for architectural icons | CNN

CNN values your feedback

1. How relevant is this ad to you?
2. Did you encounter any technical issues?
Thank You!
Your effort and contribution in providing this feedback is much appreciated.
Close
Ad Feedback
World
Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom
More
Africa Americas Asia Australia China Europe India Middle East United Kingdom
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
Edition
US
International
Arabic
Español
Edition
  • US
  • International
  • Arabic
  • Español

Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom

Follow CNN

  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Trump
    • Facts First
    • CNN Polls
    • 2025 Elections
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
    • Markets Now
    • Nightcap
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
    • Foreseeable Future
    • Mission: Ahead
    • Work Transformed
    • Innovative Cities
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
    • Climbing
    • Esports
    • Hockey
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • CNN Fast
    • Shows A-Z
    • CNN10
    • CNN Max
    • CNN TV Schedules
  • Listen
    • CNN 5 Things
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • One Thing
    • Tug of War
    • CNN Political Briefing
    • The Axe Files
    • All There Is with Anderson Cooper
    • All CNN Audio podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Famous buildings retrofit

Updated 5:20 AM EST, Thu February 9, 2012
Link Copied!
An artists impression of how Tower Bridge in London will look once it has been retrofitted with a new low-energy LED lighting system.
Tower Bridge —
An artists impression of how Tower Bridge in London will look once it has been retrofitted with a new low-energy LED lighting system.
Solar panels shimmer in the sunlight in front of St Peter's Basilica in the Vatican City. One thousand photovoltaic panels cover the roof of the Paul VI Audience Hall that generate enough electricity to meet all heating, lighting and cooling requirements of the 6,300 seat venue.
Vatican City —
Solar panels shimmer in the sunlight in front of St Peter's Basilica in the Vatican City. One thousand photovoltaic panels cover the roof of the Paul VI Audience Hall that generate enough electricity to meet all heating, lighting and cooling requirements of the 6,300 seat venue.
A project to retrofit the Empire State building in New York began in 2009.  All 6,500 windows of the skyscraper are being replaced while the building's air conditioning and lighting systems are also being upgraded. It's expected to reduce energy use by over 35%.
Empire State Building —
A project to retrofit the Empire State building in New York began in 2009. All 6,500 windows of the skyscraper are being replaced while the building's air conditioning and lighting systems are also being upgraded. It's expected to reduce energy use by over 35%.
The air conditioning system in the Sydney Opera House has been adapted to utilize sea water from the surrounding harbour.
Sydney Opera House —
The air conditioning system in the Sydney Opera House has been adapted to utilize sea water from the surrounding harbour.
The Eiffel Tower in Paris has reduced its energy consumption with a low energy LED lighting system. This artists impression however envisions further carbon reductions by growing 600,000 plants on the world famous structure. The company behind the project claims that 87 tons of CO2 could be removed from the Paris sky each year.
Eiffel Tower —
The Eiffel Tower in Paris has reduced its energy consumption with a low energy LED lighting system. This artists impression however envisions further carbon reductions by growing 600,000 plants on the world famous structure. The company behind the project claims that 87 tons of CO2 could be removed from the Paris sky each year.

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Trump
    • Facts First
    • CNN Polls
    • 2025 Elections
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
    • Markets Now
    • Nightcap
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
    • Foreseeable Future
    • Mission: Ahead
    • Work Transformed
    • Innovative Cities
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
    • Climbing
    • Esports
    • Hockey
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • CNN Fast
    • Shows A-Z
    • CNN10
    • CNN Max
    • CNN TV Schedules
  • Listen
    • CNN 5 Things
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • One Thing
    • Tug of War
    • CNN Political Briefing
    • The Axe Files
    • All There Is with Anderson Cooper
    • All CNN Audio podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

World
Watch Listen Live TV
Follow CNN
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Terms of Use Privacy Policy Ad Choices Accessibility & CC About Newsletters Transcripts

© 2025 Cable News Network. A Warner Bros. Discovery Company. All Rights Reserved.
CNN Sans ™ & © 2016 Cable News Network.