The best place to start exploring is at the mainly Gothic
St Baaf's Cathedral
, squeezed into the corner of St Baafsplein (daily: April-Oct 8.30am-6pm, Nov-March 8.30am-5pm; free). Inside, a small chapel (April-Oct Mon-Sat 9.30am-5pm, Sun 1-6pm; Nov-March Mon-Sat 10.30am-4pm, Sun 2-5pm; ¬2.50 includes the crypt) holds Ghent's greatest treasure, the altarpiece of the
Adoration of the Mystic Lamb
, an early fifteenth-century work believed to be by Jan van Eyck. The cover screens display an
Annunciation
scene with the archangel Gabriel's wings reaching up to the timbered ceiling of a Flemish house; on the inside - only revealed when the shutters were opened on Sundays and feast days - the upper level shows God the Father, the Virgin and John the Baptist, while in the lower panel is the Lamb, approached by various figures in paradise, seen as a sort of idealized Low Countries - look closely and you can see the cathedrals of Bruges, Utrecht and Maastricht. The twelfth-century crypt (same times) preserves features of the earlier Romanesque church of St John, along with murals painted between 1480 and 1540.
Just west of St Baaf's, the fifteenth-century
Lakenhalle
(Cloth Hall) is little more than an empty shell, whose first-floor entrance leads to the adjoining
Belfry
(tours daily; ¬2.50), a much-amended edifice from the fourteenth century. A glass-sided lift climbs up to the roof for excellent views over the city centre. A few strides away to the north is the
Stadhuis
(tours May-Oct Mon-Thurs 3pm; ¬2.50), whose long facade was erected in two phases - the earlier and more flamboyant section was designed by Rombout Keldermans. Each ornate niche was intended to hold a statuette, but the money ran out; the present carvings, representing the powerful and famous - including Keldermans himself rubbing his chin and studying his plans for the building - were only inserted at the end of the last century.
A couple of minutes' walk from the Stadhuis,
Korenlei
forms the western side of the old city harbour, home to a series of expansive, high-gabled merchants' houses dating from the eighteenth century. In architectural contrast, the
Graslei
, opposite, holds the squat, gabled guild- and warehouses of the town's medieval boatmen and grain-weighers. A few minutes north of here is the sinister-looking
's Gravensteen
(daily: April-Sept 9am-6pm, Oct-March 9am-5pm, last ticket 45 minutes before closing; ¬5) or Castle of the Counts, whose interior holds an assembly room with a magnificent stone fireplace and a gruesome collection of torture instruments. North of here, Braderijstraat leads to
Lievekaai
, Ghent's second oldest harbour, while east of the castle are the part-gentrified, seventeenth-century lanes and alleys of the
Patershol
, home to the
Huis van Alijn Volkskunde
, Kraanlei 65 (Tues-Sun 9am-12.30pm & 1.30-5.30pm; ¬2.50;
www.aijn.gent.be
), a series of restored almshouses where a delightful chain of period rooms depicts local life and work in the eighteenth and nineteenth centuries.
South of the centre, Ghent's main shopping street,
Veldstraat
, heads off towards the impressive
Museum voor Schone Kunsten
, fifteen minutes' walk away at Nicolaas de Liemaeckereplein 3, Citadelpark (Tues-Sun 9.30am-5pm; ¬2.50;
www.finearts.museum.gent.be
). Here, there's a first-rate sample of old masters including Bosch's
Carrying of the Cross
and the smaller, less well-known
St Jerome at Prayer
, along with work by Pieter Bruegel the Younger, Jordaens, Van Dyck and Frans Hals. Opposite, the old casino has been turned into
SMAK
(Tues-Sun 10am-6pm; ¬5;
www.smak.be
), a museum of contemporary art, which illustrates every major artistic movement since 1945.