Situated in the heart of Domplein, these subterranean ruins offer you an underground space where they can explore 2,000 years of Dutch history. The underground journey throughout these archaeological treasures takes participants to the foundations of a Roman fortress erected in 45 AD, including insights into the historical events such as the collapse of the nave attached to Dom Tower in the 17th century. To enhance your underground experience, you can join some of the tours offered at the exhibition. Grab a torch and delve into the extensive history of medieval Utrecht.

Escape the hustle and bustle of city life with a visit to Belgrade's botanical garden. Founded in 1874 by decree of the Kingdom of Serbia's Ministry of Education, on the recommendation of renowned botanist Josif Pančić, who also became its first manager, this garden offers a tranquil retreat. Each plant is systematically labelled, and the garden features a variety of areas including a peaceful Japanese Garden, a European garden, a Rock garden, and a Glasshouse. There's also a library and a dedicated Kid's corner. This is the perfect spot for a day spent in nature without leaving the city, allowing you to leave all your worries at the entrance.

The Centraal Museum stands as the oldest municipal museum in the Netherlands, offering the most captivating exploration of Utrecht's history through art and design. The museum showcases remarkable works by various local and international artists, including furniture designed by Gerrit Rietveld, a renowned local designer. The Centraal Museum also hosts temporary exhibitions frequently, which attract both locals and tourists. Located in the MuseumQuarter, the building itself is noteworthy, featuring a beautiful garden, a restaurant and a delightful museum store. If you want to avoid big tourist crowds, it is best to visit the museum on weekdays.

Located 16 kilometres from Belgrade, Avala Mountain is a true green oasis and perfect place to relax and enjoy nature. At the summit of the 506-metre-high mountain, there is a Monument of the Unknown Hero built by the famous sculptor Ivan Meštrović, on the site of the old mediaeval fortress Zrnovo.