Berlin is a vast city with not one, but several centres that come in their distinct and varied flavours of cool. The fastest and most time efficient way to hit all the main attractions is to get on one of those hop-on hop-off buses. You can get a 24- or 48-hour ticket, as well as an option to upgrade to a river cruise boat. Buses run every 10–15 minutes. Of course, you get audio commentary in multiple languages, plus a kids' channel.

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.

Having functioned continuously as an educational institution since its establishment in 1538, the college is the cradle of Hungarian civilization Designated as a national monument in 2013, it also features a museum that has permanent exhibits displaying the school’s history, student life, and the religious art of the Reformed Church in the Trans-Tisza Region. Your visit here will help you understand why Debrecen became the most important bastion of the Reformed faith in Hungary. Bedecked with majestic murals, the building’s stairwell leads to the entrance of the gigantic library storing more than 600,000 volumes, the Csokonai Room and the Oratory that housed Hungary’s National Assembly in 1849.