We had a wonderful 4 hour city tour that included a visit to the Acropolis and Parthenon. We paid extra for a guide - Nikol - who was fantastic! She was very knowledgeable, polite and professional. Also very passionate about her culture. Her extensive knowledge of architecture and theatre was an asset as her knowledge further enriched our tour. We only had one day to spend in Athens, and we highly recommend a private tour. Nikol and our driver were able to organize all our stops and sights efficiently and without any waits or line ups. Excellent service!