With only two lots unsold, the auction house nets $362.6m in evening of avid bidding

From long-hidden sculptures to a Land Art pioneer’s early cogitations

Five works made around $18m (with fees) at auctions at Sotheby’s New York on 19 May, and two were bought for undisclosed sums in private sales

Curators share their stories about the late artist, whose sculptures are show at the Baltimore Museum of Art

Major survey of his sculptures opens at the Baltimore Museum of Art in April before travelling to the Metropolitan Museum