For a Spanish happy hour, head to Boqueria near Dupont Circle. Sip a kalimotxo (red wine, rum, and cola) or a glass of sangria, available with red, white, or rosé wine. You can also nosh on discounted tapas, such as patatas bravas, a traditional tortilla, and a pork sausage sandwich. If you stay for dinner, other favorites include the pan con tomate and the bacon-wrapped dates. During the summer, be sure to request a table on the terrace.