One of Barcelona's most popular tea houses, Caj Chai is tucked away in the city's Old Jewish Quarter, (the Call) in the Gothic neighborhood behind Plaza Sant Jaume. It's hard to find a tea house with as many options as Caj Chai and as romantic. Their four page menu is full of national as well as international teas and their 'special blends' are also extremely popular especially around the holiday season. If you're a sucker for sweets, their brownies are known to be the best in town. They also have a mix of dried fruits, pastries and board games, to keep the afternoon going for hours. This is ideal for couples who want a romantic afternoon, especially if it's cold and rainy out.