Berlin is known for its diverse and lively markets, and many of them are held indoors, making them a great option on a rainy afternoon. Visit the Markthalle Neun, a historic market hall that hosts various food and drink vendors. Sample local delicacies, browse through artisanal products, and soak up the vibrant atmosphere. Another option is the Arminius Markthalle, which offers a wide range of international cuisines and specialty shops.