Archives reveal the Iron Lady’s decisive views on the portraits of Great Britons that she wanted for Downing Street

Finaldi and Rothschild take over as outsourcing deal for warding services triggers indefinite walkout

Museum dedicated to the art of climbing offers sweeping views

Islam is the focus of north-west China’s first contemporary art institution

Superstar artist provides exclusive insight into vast and eclectic collection before his Yokohama show—just don’t call him the Japanese Andy Warhol

Massimiliano Gioni’s latest exhibition looks at the relationship between women and power in the 20th century

Adrian Cheng’s “museum-retail art malls” to open across China

Nathan Coley’s apple tree works draw on the turbulent history of the former Frestonia community

South African artist will incorporate pollution in 550m-long work

Ancient sculpture from Italian museums to go on show in Tehran after Iran lends Greek statue to Fondazione Prada

Overtures include Louvre director’s planned visit to Tehran, while Italy lends classical sculpture

Frescoes recently found in the church may date back to the sixth century, which would make them the oldest Christian paintings in the country

Warrington event will include works inspired by retail giant Ikea

Show of works by Scottish prizewinners and nominees will travel in a bus across Scotland

Patrum aims to bring in donations for restoration projects, and connect patrons around the world

The installation of Event Horizon was cancelled last year after banker’s suicide

Grand rehang begins as director resolves to give permanent displays a "complete makeover"

A trio of exhibitions examines the artistic and political legacy of the grassroots group

Poor conditions persist, says new report from the activist group, but underpayment is the real issue for migrant workers

A Vanity Fair of the art world in a thriller about an imaginary Watteau

More than 30 works feature on trail of valleys and lakes

Board members say they will do all they can to save historic company in crisis

Complex system of guarantees behind sale of key works including $81.9m Rothko

Artist surprised after four exhibitions are allowed to open in Beijing—but international travel is still off-limits

Eight-week event is structured around "schools" addressing key social and artistic issues

David Adjaye-designed gallery aims to reflect institution's roots

And why this major overhaul of the country’s state museums can still go very wrong due to vested interests and bureaucracy