I live smack dab inside an urban forest of linden aka lime (Tilia) and at no time is that more obvious than mid-June-July when the trees are dripping with blooms. Their sticky sweet, floral scent is so strong, my bet is that even if you have never noticed the trees, chances are good that you are familiar with their smell.
Did you know that linden flowers make a sweet and delicious honey-like herbal tisane? The tea, made from dried flowers is popular in Europe, but virtually unheard of here in North America. It has soporific properties, meaning that it makes you sleepy, and is often used as a nighttime drink to calm and relax after a busy day.