Machu Picchu has the most spectacular setting of any ruin in the world. This Lost City of the Incas is a place everyone must see at least once.

Capping the end of the ridge is Huayna Picchu, a soaring peak that offers a challenging climb—and a bird’s-eye view of the complex as a reward. Once atop Huayna Picchu, linger for a view of the surrounding misty green-clad mountains and you’ll understand why the last Incas chose to hide there.

Machu Picchu’s grassy central court is surrounded by almost 200 houses, palaces and temples built from perfectly fitted stone blocks. Stone and earth terraces (designed for farming and defense) descend the mountain around three sides of the city—the fourth side is a sheer cliff.

If you’re feeling really fit, you could reach the ruins via the famous Inca Trail, an ancient pathway that passes through cloud forests, gorges and ancient Inca outposts before descending into Machu Picchu. The number of hikers on the Inca Trail is now limited and everyone must be accompanied by a government-certified guide. It takes between two and four days to reach Machu Picchu via the Inca Trail.

WHEN TO TRAVEL to Machu Picchu

June to August are the coldest and the driest months, it is the most popular time to trek and explore the ancient ruins. In February the annual cleanup of the trail takes place. The period between December and April is the wettest, the conditions are mostly slippery and often clouds cover the scenery.