Travelers rave about this family-owned company, which offers free and low-priced tours of Barcelona. Excursions last two to three hours and focus on everything from key Gaudi sites to Barcelona''s darker side (think medieval torture, the Spanish Inquisition and city legends). “It was amazing,” says IndependentTraveler.com Editor-at-Large Dori Saltzman. “The guide was fantastic, very knowledgeable. I learned so much about Barcelona in just a 20-block radius.” Visit RunnerBeanTours.com.