Cardiff, the capital of Wales, is a city brimming with history, culture, and modern vibrancy. At the heart of its historic charm stands the Cardiff Castle, a magnificent structure that dates back to Roman times and has been a centerpiece of Welsh history for centuries. Explore the castle’s stunning medieval architecture and lavish interiors, or take a walk around the castle grounds, which offer picturesque views of the city skyline.

Bandar Seri Begawan, the capital of Brunei, sits along the Brunei River and combines traditional charm with modern infrastructure. The city is known for its stunning Islamic architecture, including the Sultan Omar Ali Saifuddien Mosque, with its golden dome and marble minarets reflecting in the surrounding water.

Potsdam, the capital of Germany’s Brandenburg state, lies just southwest of Berlin and is best known for its grand palaces, landscaped gardens, and role as a seat of Prussian royalty.

Saudi Arabia is revealing chapters long unseen by tourists. Al-Ula is home to Hegra, the first UNESCO World Heritage Site in the kingdom and hosts to ancient Nabatean tombs carved in sandstone cliffs. Nearby, the mirrored Maraya Concert Hall reflects the desert sky, its design both unexpected and elegant amid the sands. Visitors can wander through narrow canyons, step inside rock-hewn facades, and feel the weight of ancient civilizations still echoing across the dunes.

The former Netherlands Antilles was a group of Caribbean islands once unified under Dutch administration, dissolved as a political entity in 2010.