One of, if not the most important centres for justice and peace in the world, Peace Palace comprises the United Nations International Court of Justice, the Permanent Court of Arbitration, the Hague Academy of International Law and the Peace Palace Library. Although this is a working palace, which means most areas are closed to the public, there is, however, a visitors centre where those interested can learn more about the history of the palace and the role it plays today in international justice via a free audio tour. On rare occasions, the palace opens its doors to the public for guided tours, but it is advisable to check well in advance if any dates are available as they are few and far between. In any case, the impressive surrounding gardens and Neo-Renaissance buildings are definitely a must-see.

Dolphin Encounters, located on private Blue Lagoon Island, is one of the most intriguing and memorable tours available. Visit the world famous dolphins of Dolphin Encounters for a once-in-a-lifetime experience. The boat departure dock/check-in area is located at the Paradise Island Ferry Terminal.

Just outside Kathmandu, in the village of Kapan, lies this Buddhist monastery. It is the perfect destination for a day-trip, or even a few nights in one of the guest rooms. The monastery is famed for its beautiful setting and peaceful, relaxing surroundings. Many visitors come here to attend courses in search of a spiritual experience.

Teufelsberg, an artificial peak in Grunewald, was formed from the rubble of World War II. It provides a sweeping 360° view of the city. During the Cold War, this location served as a key surveillance site for British and American intelligence agencies. Nowadays, it's a popular spot, especially on weekends, when guided tours offer a glimpse into its past, enhanced by striking street art galleries.