1. Montmartre is a hill located in the north of Paris, France. The area is known for its artsy and bohemian vibe. It was the center of the Belle Époque, a period of French history from the late 19th to early 20th century, where many artists, writers, and intellectuals lived and worked. The famous artist such as Vincent van Gogh, Pablo Picasso, and Henri Matisse lived and worked in Montmartre. Today, Montmartre is still home to many artists and performers, and visitors can enjoy its charming streets, cafes, and stunning views from the top of the hill.

2. Montmartre is open 24 hours a day, seven days a week. Many of the attractions and shops have different opening hours, depending on the day of the week and the season. The best way to find out about the working times is to check the official websites of the attractions. Montmartre’s tourist information center is open from Monday to Saturday from 9:30 am to 6:30 pm and on Sundays and holidays from 10:00 am to 1:00 pm and from 2:00 to 6:00 pm. The phone number for the tourist information center is +33 1 42 62 21 21.

3. Many of the attractions in Montmartre are free to visit, such as the Sacre-Coeur Basilica. There are also several museums, such as the Espace Dali and the Montmartre Museum, that charge admission fees. The prices for the museums vary, and visitors can purchase tickets on-site. Montmartre is accessible by several modes of transportation like metro, buses, and taxis. Visitors can take the metro line 2 and 12 and get off at Pigalle or Anvers station, or take the bus line 30, 54, 80, or 85. Taxis are also available in the area, and visitors can hail them on the street or book a ride in advance.