Exploring local markets is an excellent way to discover the city's culture. Foodies will appreciate seasonal fruits and veggies, regional cheeses and street food. Additionally, you can find anything from modern necessities of life to artisanal handmade cosmetics. Kapani Market, the oldest open public market in Thessaloniki, focuses on Greek delicacies, traditional cafes, tavernas and bakeries. Right in the city centre, it sprawls over several pedestrian streets and some parts are covered. Athonos Square, a spot for small traditional shops that offer spices and food products, handmade patio furniture and wicker crafts. Some jewellery, clothing and craft designer shops have sprung up in the last few years. Modiano Market was built in the 1920s and resembles some Parisian markets. Here you'll find traditional food items and a good selection on modern and old-fashioned tavernas. Bezesteni Market, a former Turkish bath from the 15th century now houses clothing, florist and jewellery shops. You can take the stairs to the attic and have a closer look at the six domes. Worth a visit for the architectural value alone. Last but not least, Martiou Market takes place every Saturday at Martiou, a neighbourhood in the eastern part of the city. Fishermen bring fresh catch from the Northern Aegean and from around the Halkidiki region. Fish of all sizes, mussels and octopuses won't stay on the counters long, so come early.

Inaugurated in 1811, Gamla Stenbron, in Swedish Östra Bron, is the longest stone arch bridge in Sweden which, with its 168 meters, is considered a city landmark in Karlstad.

In the 1st district, marvel at a breathtaking light installation by the artist Olafur Eliasson on the façade of the Verbund headquarters. The artwork can be seen on permanent display in Vienna every day at dusk, when 32 fluorescent lamps cast light on the artificial fog climbing up the side of the building and spreading over the pavement. You can visit the exhibition in the Vertical Gallery by appointment (call ahead) every Wednesday at 6:30pm as part of a free art talk.

The amazing Mapu’a Vaea blowholes extend for 5 kilometres along the south shore on Tongatapu. Their name means "Chief's Whistles", and you can see the water forced through the natural vents in the coral limestone cliffs sometimes up to 30 metres in height.