The Regional Tourism Committee (CRT) is an organisation associated with the Ile-de-France region that promotes and provides information about activities in the Paris/Ile-de-France area and helps carry out tasks that contribute to the implementation of the regional tourism policy.
http://en.visitparisregion.com/
The Paris Convention and Visitors Bureau was created in 1971. It performs essential tasks:
To welcome and inform visitors: Lovers of the capital, six offices welcome you year-round.
To promote the destination in France and abroad: The Bureau actively promotes everything Paris has to offer recreational and business tourists through travel agents and the media.
The French Tourism Development Agency.
Atout France is the French government's sole tourism operator. The law of 22 July 2009 regarding the development and modernisation of tourist services tasked it with promoting the development of tourism and all the actors involved with this sector.
The World Federation of Great Towers is an international association of organisations that manage high rise towers, on the condition that they are open to the public and constitute a tourist attraction.
http://www.great-towers.com
National Union of Leisure, Amusement and Cultural Parks.
The SNELAC is a professional and employers’ association open to all family-friendly recreational sites that are in an enclosed and developed space.
As such, amusement parks, water parks and wildlife parks, theme parks and parks with a scientific function, cultural sites and natural sites have become members in order to promote their activities.
Le Ciel de Paris: the gourmet panoramic restaurant in Montparnasse Tower, the highest restaurant in Europe!
A breathtaking view of the Capital that brings about a sense of tranquillity and bliss. Its luxurious décor and modern style give it an elegant atmosphere.
Accor, the top hotel operator in the world, has put its trust in Montparnasse 56. Europe's leader, the group has nearly 3,500 hotels with 450,000 rooms in 92 countries.
http://www.accorhotels.com
Public transport in the Ile de France region Look up routes, maps for the metro, bus, RER (regional commuter train), and the neighbourhoods, as well as information about traffic, prices, timetables, accessibility, etc.
http://www.ratp.fr/en/ratp/c_21879/visiting-paris/
The Paris Visite travel card is valid for 1, 2, 3, or 5 consecutive days in zones 1-3 or 1-5.
Paris Visite also gives you benefits and discounts at 13 of the RATP's partners.
Cultival is an agency that organises cultural tours and offers guided group tours of the Montparnasse Tower panoramic observation deck.
https://www.cultival.fr/en
4-star hotel with panoramic views of Paris, 2 steps from the Latin Quarter
http://parismarriottrivegauche.com/