Museum of Modern Art (01865 01865 722733/813830): Tues-Sun 11am-6pm, Thurs 11-9, until Oct 8, Enclosed and Enchanted, ten contemporary artists explore various forms of landscape architecture; in the caf, Joanna Usherwood: Surface Tension paintings probing the 'nature' of art, science and industry. Wednesday lunchtime tours throughout September, noon.

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Ashmolean Museum (01865 278015: Tues-Sat, 10-5, Sun 2-5. Exhibitions: until Sat, Turner's Oxford; until Sept 10, British Townscapes. Ashmolean Treasures tour every Saturday 11am. Highlighted object of the month: Greek amphora showing Olympic sports, gallery 33, Ancient Greece, first floor. Special tours: can be arranged for private adult groups, tel for further information. To book a place on gallery talks, activities and tours tel 01865 278015. ________________________

Oxford University Museum of Natural History (01865 272950): open daily noon-5pm. Until December, Ruskin and the Oxford University Museum: Ruskin. New permanent dinosaur and dodo exhibition.

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Pitt Rivers Museum, Parks Road (01865 270927): open noon-5pm, daily. Until Sept 2001, Transformations: The Art of Recycling. Also the Joachim Schmid Collection at the Pitt Rivers Museum, an artist's intervention and site-specific installation. Until autumn, Collectomania! Coke cans to twizzle sticks. ________________________

Christ Church Picture Gallery (01865 276172): Mon-Sat 10.30-1, 2-4.30, Sun 2-4.30. Until Nov 15, Images of Women Old Master drawings including works by Ribera, Ferderico Zucaro, Abrham Bloemaert and Elisabetta Sirani. Admission free on Mondays.

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Oxford Gallery, 23 High Street: 10-5 Mon to Sat, until Sept 6, Glass Houses a survey of glass relationships. See review in this week's Weekend, Pages 18 and 19 ________________________

Darbys Mallam Lewis, 52 New Inn Hall Street, Oxford: ends Friday Sep 1, during office hours, an exhibition of photographs by Simon Bentley: from flower portraits to broad and atmospheric landscapes andThe Oxford Times journalist, Helen Peacocke: the glories of food.

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Ark-T Centre and Gallery, Crowell Road, Cowley (01865 773499/396778): Sept 4-30, Within the Sanctuary, paintings and prints by Rachel Edwards-Grundy and Sharon Wyper.

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The Theatre, Chipping Norton: until Sept 17, Elemental, paintings and prints by Judith Yarrow. ________________________

Oxfordshire Museum, Fletchers House, Woodstock: until Sept 10, About Time. In association with the Ashmolean Museum an exhibition for the new millennium.

Vale and Downland Museum, Wantage (01235 771447): Tues-Sat 10-4.30, Sun 2.30-5, ongoing, Heritage of the Vale of the White Horse. Until Sept 10, Gus Mills' watercolours of local scenes and views of the Lake District, Shropshire and the south west.

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Milton Keynes Gallery (011908 676900): Sept 2-Oct 8, Alison Turnbull shows Houses into Flats 28 paintings investigating the ways in which we transform the spaces we inhabit; new work by Layla Curtis making use of sea, road and various world topographical maps, collaged into intriguing hybrid pieces; specially commissioned wall drawing by Richard Wright for the distinctive Cube Gallery. Although separate, the exhbitions have a loose architectural and urban connection. Telephone the gallery for details of guided tours and other events during this exhibition. ________________________

Henley River and Rowing Museum: Sat Sep 9, 1.30pm, Looking for Alice on the Thames, a talk by Mavis Batey. To book a place telephone 01491 415607/5.

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Cheltenham Art Gallery and Museum: until Sept 23, Hidden by Hedges... Change in the Cotswold Landscape.

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Stour Gallery, Shipton-on-Stour (01608 664411): today and Sat, Summer Exhibition. Paintings, original prints and ceramics.

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New Greenham Arts Gallery, Newbury (01635 38105): Sep 5-22, Dr Jon Pengelly's Work in Progress, derived from his years working on an American military base during the Cold War years.