Machu Picchu is an ancient Incan citadel located in the Andes Mountains of Peru. It was built in the 15th century and abandoned during the Spanish conquest.

The most common way to reach Machu Picchu is by taking a train from Cusco or the nearby town of Ollantaytambo to Aguas Calientes, followed by a shuttle bus or a hike up to the site.

The best time to visit Machu Picchu is during the dry season, which runs from May to September. However, this is also the busiest time of year, so visitors should book in advance to secure their tickets.

The cost of visiting Machu Picchu varies depending on a number of factors, such as the type of ticket purchased, the time of year, and any additional services or tours. As of 2021, the cost of a general admission ticket for foreign visitors is $60 USD.

Most visitors spend a full day at Machu Picchu, but some may choose to stay longer to explore the surrounding area or take part in other activities such as hiking or birdwatching.

While it is not required to hire a guide to visit Machu Picchu, many visitors choose to do so in order to gain a deeper understanding of the site's history and significance. Guides can also help visitors navigate the site and avoid the crowds.

Yes, there are several rules and restrictions in place to protect the site, such as a limit on the number of visitors per day and restrictions on what visitors are allowed to bring with them. Visitors should also be prepared for high altitudes and variable weather conditions.