Vigo's Castro (Celtic era) archaeological site grants visitors a glimpse into what the Galician settlement of today once was (between roughly 2 BC and 3 AD). Guided tours of the Castro are organized Tuesday to Sunday, 10am-2pm & 4-6pm. Hike up the mountainside to take in the ancient city from afar.

Seven generations saw the Tan Ky house remaining in the excellent condition it welcomes visitors in today, as it continues to stand as an excellent example of the confluence of cultural influences that define Hoi An. This 18th-century merchant home combines elements of Chinese and Japanese design and even features elements of European influence (such as the grape leaves carved into the courtyard balcony). The house comes furnished with original period pieces and contains a small gift shop; an open courtyard at its centre brings in light and air, creating an organic link to nature and preventing the structure from flooding (although this isn't a remedy in extremely high water).

The Botanical Garden is a baroque garden in which more than 8,000 species from all over the world are grown. Enjoy the light, the greenery, and the tranquillity of the tropical greenhouse, visit the majestic rooms of the orangery, or just have a stroll around the gardens. The café is open during the summer, and there's also a programme of exhibitions, concerts, courses, and children’s activities. Admission is free.

Uppsala Concert & Congress is a multifunctional meeting place with a design and acoustics of world-class. The building is eight stories high and spans 14,600 square meters, making it an ideal forum for all kinds of concerts, conventions, events, and meetings. The building itself is well worth a visit for its renowned design and fantastic view. Uppsala Konsert & Kongress sells tickets to its own and other venues in Sweden.