Chinese city is first in Asia to host global congress

The Art Preservation Index wants collectors to know that much art today is made from materials that will deteriorate fast

Bonnie Burnham made the organisation, which turns 50 this year, into a global powerhouse

Cleaning and LED lighting give visitors a glimpse of how the space originally looked

Artist’s grandsons waived fees to conserve his largest work, which goes on show at Tate Modern this week

International Festival of Film Preservation, which opens today, will show a mix of silent comedies, classics and cult favourites

The Fendi-backed €2.2m restoration of the Roman tourist favourite is nearly complete

Archaeologist says climate change could result in more ancient objects resurfacing in the far North

CT scans reveal secrets of Field Museum’s Peruvian and Egyptian treasures before they are sent on the road

€2m restoration of eight marble outer walls took 21 months

Project aims to create virtual archives using 3D scanning technology

Rediscovered Japanese panels on show after two years of painstaking restoration in specialist studio

Syrian antiquities head confirms destruction of ancient Roman archway

The outline of a house dating to the sixth century BC was found beneath the Palazzo Canevari on the Quirinal Hill

Robert Smithson would have approved of environmental changes, say guardians of the site

Conservators to sweep the floors of the boy pharaoh’s burial chamber and remove epoxy applied to golden mask’s loose beard