If you are writing it in Spanish (the main language of Peru), you would write it with an accent on the last letter: Perú.
The word is spelled Peru, which is a country so it requires a capital "P".
it is a lake located in Puno, Perú. And the right spell is Titicaca.
That is the correct spelling of the proper noun "Inca" for the Inca, Incas, or Incan people of Peru.
Perú is the spelling in Spanish. Note it is the same, except for the accent.
The ancient Incan city in Peru is spelled Machu Picchu.
Cuzco, a city in Peru and the former capital of the Inca Empire.
Peru is for you
They all have the names of countries within them; Peru, Oman, Iran and Mali (if you spell anomalies properly).
Peru
Lima is in Peru. It is also the capital city of Peru.
Republic of Peru
In Peru