Designed inside and out by the internationally acclaimed Charles Rennie Mackintosh, the House for an Art Lover is an arts centre in Southside's spectacular Bellahouston Park. The venue is also a popular choice for private celebrations, and houses a café that well lives up to its environment, making for a sublime location for afternoon tea.

The New Venetian Fortress is an old military complex loaded with interesting tunnels, cellars, and dungeons. It provides excellent views of the Old Town and the bay. Look out for the two lions of St Mark and the Venetians' inscriptions on the bastion walls above.

Near the Stock Palace and the Douro River is another UNESCO World Heritage site that is well worth visit while in Porto, the Monument Church of St Francis, or Igreja Monumento de São Francisco. This church built around the 14th century has one of Europe's most sumptuous and extravagant interiors. Here, all that glitter is, in fact, gold! Its interior is covered in gilded woodwork, and rumour has it that it was used around 400 to 600 kg of gold to decorate it. Hence why the St Francis Church is also known as "The Golden Church". Another highlight of this church is its impressive Tree of Jesse, a wooden sculpture carved by Filipe da Silva and António Gomes in 1718 depicting the ancestors of Jesus Christ, shown in a branching tree — considered to be one of the best in the world of its kind. Under the church, you will find the catacombs, where the Franciscan monks along with the members of Porto's noble families are buried.

The Western Wall is the only part remaining of Solomon's Temple, built in the 10th century BC and destroyed twice. Praying here carries a lot of meaning for Jewish believers, who mumble hymns and insert prayers written on small pieces of paper between the bricks — every visitor is allowed to partake. The Temple was said to contain the Ark of the Covenant, a biblical golden chest. Moreover, Jesus reportedly visited the Temple as a child and left an impression on the wise men inside with his knowledge of the Bible. There are separate entrances for men and women leading to different parts of the wall. Friday evenings are particularly crowded, as Jewish people celebrate the arrival of Shabbat, the day of rest. Bar Mitzvah ceremonies take place in the morning on Monday, Thursday and Saturday: it's a great time to visit, as the place comes alive with Jewish song and dance.