Taj Mahal: the symbolic monument of India threatened by pollution.

The white marble of the Taj Mahal threatened by pollution and insects: the concern of the India government.

Petra: the city in the rock saved by an Italian task force

Petra, Jordan’s city in the rock, is threatened by rain and erosion: these are the works undertaken to save it.

Machu Picchu, its past and future: the Peruvian government’s project

The pros and cons of a construction project for a new airport close to the archaeological site

Petronas Towers: the towers of Kuala Lumpur

Construction and interesting facts about the Petronas Towers, the tallest twin towers in the world

The Oculus of New York: history and specifications of a new icon

A new icon, the symbol of the city’s rebirth: this is how Calatrava’s Oculus came about.

Empire State Building: interesting facts about New York’s skyscraper

In the heart of Manhattan, the Empire State Building is one of the most famous in New York and throughout the United States.

Sustainable city: meaning and features

The concept of a sustainable city is very broad and complex: here’s an in-depth examination

The Sydney Opera House: history and interesting facts

Iconic and original, the Sydney Opera House has a long history and unique features.

Rockefeller Center: the history and specifications of a New York icon

A unique building complex in the heart of Manhattan, a "city within a city".