Letter cites Warren B. Kanders's role in company that manufactured tear gas used at US border

Official argues that its return could help boost tourism in an area that has suffered economically from earthquake damage

Complex conservation issues mean it could easily take a decade or more to rebuild the Medieval cathedral

The artist considered the streaks left by gunfire to be part of the Land Art work's evolution

Moscow's Garage Museum of Contemporary Art is offering curatorial expertise as part of growing network of partnerships with post-Soviet countries

Construction on the long-delayed project is expected to take three to four years

Research centre based on the library of German art historian Aby Warburg plans to open new public spaces in 2022

The initiative is part of a broader reconciliation effort by the government

As Katie Paterson's sand castle project goes on tour, we look at how her Future Library is being made to outlive the artist

Several charitable and crowdfunding campaigns have launched since the fire

The 19th-century daredevil is most famous for crossing Niagara Falls 17 times—once with a stove on which he cooked an omelette

The Ontario native is just the fourth woman to take the post, and the youngest in more than a century

The 19th-century spire has collapsed on the medieval landmark

The Los Angeles Modernist home was designed and lived in by Charles and Ray Eames

Exhibitions in Russia of homegrown artists attract proportionally greater numbers than blockbusters in other countries

Grappling with questions of authenticity, museum 'decommissions' some works from the Panza Collection

The portrait has striking similarities to a recent acquisition by the National Gallery in London

The design spans Wilshire Boulevard and replaces four extant buildings

Museums and cultural institutions in the Brazilian state prepare for closures and cancelled programmes

County officials prepare to vote on the $650m project this week, but the museum’s next incarnation could come at too high a cost for culture

An overheated air conditioning unit was the starting point of the inferno that destroyed the building last year

In the second part of a new series, Adrian Ellis examines the issue of post-colonial restitution

In January, the 19 Smithsonian institutions had just 13% of the footfall they had experienced the year before

On the same day, the nearby Neues Museum Weimar will open a new permanent exhibition on early Modernism

With more than a million people through the doors annually since 2015, the museum is a case study in how to expand audiences

Hasso Plattner also plans to put his Impressionist works on permanent display in his Barberini Museum

The historic Southwest Museum, operated by the Autry Museum of the American West, is seeking proposals for reuse

Our pick of the latest gifts and purchases to enter museum collections worldwide, from Van Dyck’s portrait of a princess bride to a rare painting by a Brazilian Modernist

Research by UK startup Vastari delves into hidden economics of museums' special shows

Gerhard Richter, Trisha Donnelly and Steve McQueen will show new commissions