1. Cusco, a UNESCO World Heritage site, was once the flourishing capital of the Incan Empire before the Spanish conquest.

2. The main square in Cusco, Plaza de Armas, was once a swamp, which the Incas dried up to create the city's focal point.

3. The city’s Sacsayhuaman fortress walls are made of enormous stones weighting up to 128 tons, and are put together without mortar.

4. Cusco celebrates the vibrant Inti Raymi Festival annually, reenacting the Inca’s celebration of the sun god, attended by thousands of visitors.

5. San Pedro Market is an unforgettable sensory experience where locals shop for colourful produce, unique handicrafts, and traditional Peruvian foods.

1. Popular Spots & Entertainment: Start by exploring the historical city center of Cusco, where you'll find the Cusco Cathedral and the hardened Inca walls of Qorikancha. Make a trip to Sacsayhuaman, a walled complex near the city, and don't miss a chance to visit the iconic Machu Picchu, a World Heritage site. Visit the San Pedro Market for local shopping and vibrant atmosphere.

2. Money Saving Tips: Bargain when you're shopping in local markets; it's part of the local culture. Use public transportation or shared taxis to go from one place to another as they are much cheaper compared to private cabs. Cusco’s food and drinks are cheaper than most places but stick to local cuisines; imported goods tend to be pricier.

3. Dining: Cusco is famous for its variety of Andean food. Try the traditional dish called 'Cuy', which is a guinea pig, and the local corn beer 'Chicha.' For a multi-course meal with a modern take on Peruvian specialties visit the Cicciolina restaurant but for local dishes at a lower price, consider eating at the San Pedro Market.

4. Best Times to Visit: The best time to visit Cusco is from June to mid-September when the weather is dry and warm. Keep in mind that this period is also the peak tourist season. If you want fewer crowds, consider going in the shoulder season, which is April - May or September - November.

5. Itinerary Planning: Allocate at least two days to acclimate as Cusco is more than 11,000 feet above sea level, and altitude sickness can be a concern. Plan a good mix of history, culture and nature in your itinerary. Include a visit to the Sacred Valley and the rainbow mountains of Vinicunca, and if time permits, venture out to the nearby towns of Pisac and Ollantaytambo.