The town itself breathes history. The Inca walls and temple foundations throughout the town are amazing in their precision and interlocking design. These foundations are then topped off with the beautiful Spanish colonial architecture so it is enough to wander around the town for a full few days whilst being immersed by the splendour of it all.
Highlights in Cusco itself beside the Incan walls in evidence all around are the Plaza de Armas with the Cathedral on one side and Koricancha within the Convent of Santo Domingo on the other and San Blas which is known as the artist quarter.
Also allow enough time to visit the other fantastic ruins in the Sacred Valley besides Machu Picchu such as Saqsaywaman, Ollaytambo and Tambo Machay. All of these are exceptional as is the scenery of the valley as a whole. Take the city tour and the Sacred Valley guided tour, personally we are not ones for organised activities but these particular tours turned out to be one of the highlights of our trip. This was due to our guide, Jorge, he was studying to be an Archaeologist and was a wealth of information you would otherwise have never have known. We booked him through Cultural Travel on Santa Catalina Angosta just off the square.
Quick Tips:
Don't under estimate the effects of the altitude or the effectiveness of Diamox tablets to alleviate the symptoms and accelerate your acclimatisation. Obtain via prescription prior to leaving home. Then, eat lightly, take it easy the first few days you shouldn't have any problems besides a little breathlessness.
On arrival try to have some idea of where you are staying even if you are not really planning on staying where you say because your taxi driver will bound out of the cab before all four wheels have even stopped to your chosen or his recommended hotel thus ruining your chances of obtaining a decent rate due to the fact that he receives a commission for depositing you there even if this was where you were going in the first place!
Prior to entering your first major sight you need to purchase your Cusco tourist ticket for . You buy this at your first entry point and it is then valid for 10 days. It covers entry fees for 16 sites such as Saqsaywaman, the Cathedral, Ollayantambo etc. However it only allows you entry to the museum of Qorikancha not the the site itself, the entry fee is another 4 soles.
Best Way To Get Around:
Within Cusco itself it is easy enough to walk to most places, especially if you are staying in a centrally located hotel. Paying a little more for this is well worth the money.
Taxis are very plentiful and cheap so these are another option if the altitude is taking it's toll. Be warned every single driver we met was also a "tour guide" and immediately started their sales push!