Helga Trefaldighet (Holy Trinity) Church was inaugurated in 1302. It replaced the previous church of local Ullerås parish. The church is made of grey stone and brick and it was originally a three-nave basilica. The western tower was added in the 15th century. The church was damaged badly by fire in 1702.
The interior is particularly notable. It is decorated with paintings by the famous medieval artist Albertus Pictor, which were created in the second half of the 15th century. Of particular interest is the depiction of The Visitation, regarded as one of the finest surviving medieval paintings in Sweden.
Situated in the basement of Metropol Parasol, Antiquarium is a modern, well-presented archaeological museum with sections of ruins visible through glass partitions, and underfoot along walkways.
These Roman and Moorish remains, dating from the first century BC to the 12th century AD, were discovered when the area was being excavated to build a car park in 2003. It was decided to incorporate them into the new Metropol Parasol development, with huge mushroom-shaped shades covering a market, restaurants and concert space.
There are 11 areas of remains: seven houses with mosaic floors, columns and wells; fish salting vats; and various streets. The best is Casa de la Columna (5th century AD), a large house with pillared patio featuring marble pedestals, surrounded by a wonderful mosaic floor – look out for the laurel wreath (used by emperors to symbolise military victory and glory) and diadem (similar meaning, used by athletes), both popular designs in the latter part of the Roman Empire. You can make out where the triclinium (dining room) was, and its smaller, second patio, the Patio de Oceano.
The symbol of the Antiquarium, the kissing birds, can be seen at the centre of a large mosaic which has been reconstructed on the wall of the museum. The other major mosaic is of Medusa, the god with hair of snakes, laid out on the floor. Look out for the elaborate drinking vessel at the corners of the mosaic floor of Casa de Baco (Bacchus’ house, god of wine).