Vogelfluglinie [1967] by Gerhard Richter. On sale as part of Christie's 'Post-War and Contemporary Art Evening Sale' tonight. Estimate USD 18,000,000 - USD 25,000,000

Unique 'Hippopotame I' Bathtub [1969] by François-Xavier Lalanne. On sale as part of Christie's 'La Ménagerie' auction today. Estimate USD 1,000,000 - USD 1,500,000

Studio in Arzignano [2018] by Amaa

This concrete sculpture entitled 'Un Arbre dans le Parc' at Georges-Vanier station in Montreal by Michel Dernuet

Sieste [1969] by Jean-Pierre Cassigneul

Nature morte à la bouteille et aux fruits [1949] by Bernard Buffet

Wheelbarrow [1923] by Gerrit Rietveld. On sale as part of Wright's 'International Style: The Boyd Collection' auction. Estimate: $10,000–15,000

Boston City Hall [1968] by Kallmann McKinnell & Knowles

Roses, tulips, poppies and other flowers in a glass vase with cherries and a butterfly on a stone ledge [17th Century]

Moonlight (SCH. 81A; W. 90) [1896] by Edvard Munch