1. Herengracht is one of the most famous canals in Amsterdam, known for its luxurious architecture and affluent residents. The canal is named after the \"heren\", or patricians, who once lived in the grand houses along its banks. Some interesting facts about Herengracht include:

- It was dug in the early 17th century as part of Amsterdam’s canal ring, which is a UNESCO World Heritage site.

- Many of the houses along Herengracht were built in the Dutch Golden Age and feature ornate facades and gables.

- The canal is 2.8 kilometers long and is the innermost of Amsterdam’s three main canals.

2. Herengracht is a public canal, so there are no working hours or phone numbers to speak of. However, there are plenty of companies that offer boat tours of the canal, which can be a great way to see the sights and learn more about Amsterdam’s history. Some popular tour companies include Stromma, Holland International Canal Cruises, and Friendship Amsterdam.

3. There are no tickets required to visit Herengracht itself, as it is a public area. However, if you want to take a boat tour or visit any of the museums or attractions in the surrounding area, you may need to purchase tickets. The easiest way to get to Herengracht is by public transportation. There are several tram and bus stops in the vicinity, as well as the nearby Centraal Station for train and metro connections.