As the Tate and British Museum extensions reach their full height, institutions say business plans stack up

Design includes a courtyard and new entrance

The museum extends down, not up with new plan that is largely below street level and much less expensive than the failed Spiral

Exhibition space will occupy area originally designed for abandoned Spiral project

The modernisation of this landmark is an example of Knoedler's adaptability, as one of the US's longest established commercial galleries

Experts at the ancient site of Izeh in the Karun River valley have not been afforded the same privileges

“To see this happen breaks my heart”, says archaeologist Dr Henry Wright

The ancient Assyrian empire, along with over a hundred other heritage sites, will face detrimental flooding

Local authorities have not been sympathetic towards Malevich's estate where he was buried

New structure will showcase contemporary crafts

Criticism from the Spanish architectural world as the museum launches huge open competition for its new extension

Brain drain from the V&A

City officials are debating what to do with the Neo-Classical civic monument, which experts consider to be one of Europe's finest buildings