1. Place de la Concorde is a public square located in the heart of Paris, France, between the Tuileries Gardens and the Champs-Élysées. It is famous for its iconic Egyptian obelisk, standing at over 3300 years old and weighing over 250 tonnes. The square was originally named Place Louis XV, but after the French Revolution, it was renamed to symbolize the \"concording\" of the French people. The square has witnessed many historic events, including the execution of King Louis XVI during the French Revolution and the end of the Paris Commune in 1871. Today, it is a popular tourist attraction and a central hub for transportation, with numerous luxury hotels, restaurants, and shops in the surrounding area.

2. Place de la Concorde is open to the public 24 hours a day, 7 days a week. There is no phone number listed for the square.

3. Admission to Place de la Concorde is free, as it is a public square. The closest metro station is the Concorde Station (lines 1, 8, and 12), and there are also several bus stops and bike rental stations in the surrounding area. taxis and private car rentals are also available.