Knez Mihailova Street is the pedestrian area that unifies Belgrade's beautiful architecture. It leads to the Belgrade Fortress and Kalemegdan Park on one end, and to Terazije and the iconic Terazijska česma drinking fountain near Hotel Moskva on the other, offering a splendid view of the Sava river valley. Inside tip: Take a detour to Kosančićev venac, the oldest part of Belgrade outside the fortress. This charming elbow-shaped street is home to Princess Ljubica's Residence, the Building of the Patriarchate of the Serbian Orthodox Church, and the Cathedral Church of St Michael the Archangel, all of which are sure to captivate you with their elegance.

Unique in Greece, the Rotunda is a cylindrical building from the early 4th century AD. The mosaics inside are really impressive. The Rotunda is a massive circular structure, built in 306 AD, with a masonry core. Through its long history, it has gone through multiple periods of use and modification as a polytheist temple, a Christian basilica, a Muslim mosque, and a Christian church once again. A minaret is preserved from its use as a mosque, and ancient remains are exposed on its southern side. Some Greek publications claim it is the oldest Christian church in the world. These days, the Rotunda is primarily an archaeological site, where you can see some remaining Christian mosaics and feel the weight of history.

The Bahrain World Trade Center is one of the country’s most recognisable landmarks and a defining feature of its skyline. The complex is open to the public, where you can admire its striking architecture, explore the popular MODA Mall, or dine in its restaurants. The twin towers are connected by three skybridges, each fitted with a wind turbine, an innovative feature that harnesses the strong Gulf winds. On breezy days, you can often see them turning. Frequently featured on postcards and travel guides, this building has become a modern symbol of Bahrain.