Saint-Nicolas-du-Chardonnet

Visitable only by reservation and then only one Saturday every month. A richly decorated palace built for Marie de Medici in the early 17th century, which is now the French Senate. For those interested in seeing a Parisian monument normally unavailable to the public, or for those interested in the inner workings of the French Government. The large Luxembourg Garden is open to the public year-round. The garden is home to the Medici fountain, a children's playground, and vintage toy boats for hire that children push around in the Grand Bassin duck pond (a 90-year tradition).

Reopened after extensive renovations, this small museum near the Louvre houses the Jean Walter and Paul Guillaume Collection, sold to the French Republic on very generous terms and numbering 143 paintings from the late 19th century and the first half of the 20th century (15 Cézannes, 24 Renoirs, 10 Matisses, 12 Picassos, 28 Derains, 22 Soutines). The collection joined the eight immense Water Lilies that Monet gave France in 1922 and which have been displayed since 1927 in two huge oval rooms purpose-built on the artist's instructions.

An ancient Roman theater, the only surviving above-ground ruins of the Gallo-Roman era in Paris (ancient Lutetia, French Lutèce) apart from the nearby Thermes de Cluny. The theatre could hold approximately 15,000 spectators and measures some 132 m x 100 m. Built sometime in the 2nd century CE, the location of the actor's dressing room, the platform of the stage, and lapidary remains can still be seen. The remains were rediscovered in 1869, when new streets were being built. An excavation was subsequently ordered in 1883. The theatre has been preserved as a quiet archaeological park removed from the bustle of Parisian streets.

The national library preserves collections of historic documents of both French and international origin. It holds 5,000 Greek manuscripts. You can get a day pass to visit or choose to visit only the expositions the library hosts.

19th-century bridge.

This charming museum is owned by the French Académie des Beaux-Arts. Its main collection areas, the result of several large donations, include: First Empire art and furnishings; illuminated manuscripts; and Impressionist art, including the largest Monet collection in the world and works by Renoir, Manet, Morisot, Caillebotte and Gauguin.

The Palais de Tokyo is Paris's largest specialist contemporary art exhibition venue, owned and operated by the national government. The building dates to 1937 and also includes the Museum of Modern Art of the City of Paris.

Built in 1625, the Hotel de Sully is an interesting house with some sculptures in a beautiful courtyard. The house features special exhibitions, so check listings when in Paris.

a Roman Catholic church on the east side of the Place Saint-Sulpice within the rue Bonaparte, in the Luxembourg Quarter of the VIe arrondissement. At 113 metres long, 58 metres in width and 34 metres tall, it is only slightly smaller than Notre-Dame and thus the second largest church in the city. It is dedicated to Sulpitius the Pious. During the 18th century, an elaborate gnomon, the Gnomon of Saint-Sulpice, was constructed in the church. In front of the church itself is the magnificent Place Saint-Sulpice which contains the 'Fountain of the Four Bishops'. The church has a long-standing tradition of talented organists that dates back to the eighteenth century. In 1862, Aristide Cavaillé-Coll reconstructed and improved the existing organ built by François-Henri Clicquot. Though using many materials from Clicquot's French Classical organ, it is considered to be Cavaillé-Coll's magnum opus, featuring 102 speaking stops, and is perhaps the most impressive instrument of the romantic French symphonic-organ era. Its organists have also been renowned, starting with Nicolas Séjan in the 18th century, and continuing with Charles-Marie Widor (organist 1870-1933) and Marcel Dupré (organist 1934-1971), both great organists and composers of organ music. The current organists are 'titulaire' Daniel Roth (since 1985) and 'assistant titulaire' Sophie-Véronique Cauchefer-Choplin. In Saint-Sulpice Sunday organ recitals are held on a regular basis (Auditions du Dimanche, following the High Mass, usually from 11:30am till 12:05pm, during the subsequent mass, a visit of the organ loft is possible).

There are many beautiful footpaths, a Buddhist Temple, and a lake with rowboats available for rental (about €10 as of 2009). The lake has many different kinds of birds, and islands accessible by footbridge.

Private collection of French, Italian, Dutch masterpieces in a typical XIXth century mansion.

One of Paris's best kept secrets, painted by Monet numerous times. It is a very elegant centre of green in the middle of cosmopolitan Paris. Make sure you check out the statues, entrance rotunda and the surrounding mansions. Thanks to Haussmann himself this precious slice of parkland was reserved for the enjoyment and leisure of the people of Paris. It is unusual in France due to its casual, informal "English" style planning, and is a contrast to other Parisian parks such as the classically laid out and formal Luxembourg Gardens and the Tuileries. Randomly placed throughout the park are scaled-down architectural replicas including an Egyptian pyramid, Dutch windmill, and a Chinese fort. Free Wi-Fi in the park.

The magnificent setting of The Phantom of the Opera, the inside is as opulent as the outside. However, since the opening of the Opera Bastille (12th) in 1989, the Palais Garnier has been reserved mostly for dance performances, particularly ballet.

Recently reconstructed, the Paris branch of the National Maritime Museum, one of the three museums in the Palais du Chaillot, cannot accommodate any full-size ships, but has a wide range of smaller artifacts, artworks and models, covering both the Navy and commercial shipping.

The northwest corner of the Bois de Boulogne is occupied by the oldest operating amusement park in the world, the Jardin d'Acclimatation, which is mainly known for offering a wide range of amusements which are appropriate even for very small children. They have miniature roller-coasters for children as small as three years, and the usual range of pony rides etc.

Housed in an amazing Art Deco building, purpose-built for the 1931 Colonial Exhibition, featuring an elaborate frieze across the front facade that depicts the achievement of French overseas territories. It houses an Aquarium and an Immigration Museum. The aquarium can be seen in about an hour and is popular with families with small children.

Many feel that this, Paris' town hall, is one of the loveliest buildings in the city. You might not get that from the front view, but try watching the light change on its roofs and towers during sunset from one of the cafés on the Ile de St. Louis, the Lutece for instance. Alternatively, go to the top floor of the Bazar de l'Hôtel de Ville (BHV) department store opposite, on rue de Rivoli and walk up a flight of stairs to the roof terrace (terrasse), from which there is a dramatic view of both the roof of the Hôtel de Ville and the immediate surroundings and river. The present Hôtel de Ville replaced the 16th century original which was burned down during the Commune in 1871. A pastiche of its predecessor, but on a far larger scale, it was designed by the architects Ballu and Deperthes, chosen after a competition, and was mostly completed by 1882. The building is lavishly, and some would say heavy-handedly, decorated both inside and out, and finished in an arrestingly white stone, similar to that used for the even more eye-catching Sacre-Coeur basilica. The statue on the garden wall on the south side is of Etienne Marcel, the most famous holder of the post of "prevôt des marchands" (provost of merchants) which pre-dated the office of mayor. Marcel came to a sticky end, lynched in 1358 by an angry mob after trying to assert the city's powers a little too energetically. The Hôtel de Ville was for many years the private fiefdom of Jacques Chirac, France's president before Sarkozy, and was the site of a scandal centring on both illegal jobs given to Chirac's party members and an immense entertainment budget. General de Gaulle greeted the crowds from a front window in 1944 when Paris was liberated from the Germans and Robespierre was shot in the jaw and arrested in the original building in 1794. Admirers of Hôtel de Ville's architecture will want to know that Ballu also built the Church of La Trinité in the 9th arrondissement and the belfry of the town hall of the 1st arrondissement, opposite the Louvre's east façade. Ballu also restored the Tour St Jacques (see below), which was uncovered after restoration work lasting over a decade.

Considered one of the most colourful Parisian parks, a local favourite, the Parc Montsouris was opened in 1878, having been designed by Alphand for Baron Haussmann. A large man-made lake and waterfalls are surrounded by long stretches of gently sloping lawns. Bronze statues are to be found studding the grounds, amongst the 1,400 trees, including such exotic varieties as the giant sequoia and the ginkgo. The park is featured in the film Cléo de 5 à 7. It is popular among families (there are two playground areas for children) and students.

A monument to the French art de vivre, housed in a 19th-century wing of the Louvre that has been restored to beaux-arts splendour, its galleries and period rooms showcase eight centuries of Gallic taste in interior decoration.