Hidden in the heart of Rotterdam is a green gem of tranquil nature. The Trompenburg Gardens & Arboretum, located just east of the centre, offers every city dweller a welcome escape from the bustling urban life. As one of the Netherlands’ botanical gardens, Trompenburg houses the national collection of oak trees, counting 300 species that are spread out across the estate. With autumn settling in, this month is a magnificent time to see the yellow, orange and red-coloured leaves falling from the trees – some of which are over 150 years old.