Meudon Observatory

The sleaze of boulevard de Clichy between place Pigalle and place Blanche can provide a moment of distraction. Be warned if you are male it is better to do this in the company of a female fellow traveller, as the clubs often send the girls outside to attempt to physically drag passing men off of the street. These strip clubs are big ripoffs. They tempt you with a free drink for €10 entry; once in the girl who starts dancing orders a couple of drinks (Red Bull) and then before you realise you are presented with a bill ranging from €500-700. They have these big bouncers who threaten/manhandle you till you arrive at some settlement with them. The whole of Pigalle is a rip off, best avoided. The police know about these places but nothing is done.

Mainly used as a concert hall and venue for fashion shows today, the Cirque d'Hiver was built in 1852, as the name would suggest, as a winter venue for circuses.

Most of the works by Picasso and others which were in the master's possession at the time of his death are now on display here.

The burial place of existentialist philosopher Jean-Paul Sartre, feminist Simone de Beauvoir (both of whom lived nearby); musician Serge Gainsbourg; artist Man Ray; the poets Charles Baudelaire, Guy de Maupassant, Charles Sainte-Beuve, and Marguerite Duras; the founders of the Theatre of the Absurd Samuel Becket and Eugene Ionesco; the sculptors Constantin Brancusi and Ossip Zadkine; the composers Camille de Saint-Saens and César Franck; the actors Maria Montez and Jean Seberg; the French officer Alfred Dreyfus; the founder of the Larousse encyclopedia, Pierre Larousse; the industrialist André Citroen, and many others.

A Gothic church tower in a square 150m to the west of the Hôtel de Ville was restored by Ballu, is all that remains of Eglise Saint-Jacques-de-la-Boucherie, which was the meeting place in Paris for pilgrims heading to Santiago de Compestela. As such it is included on the UNESCO World Heritage List as part of the Routes of Santiago de Compostela in France.

The Paris Botanical Garden, founded as the royal medicinal garden in 1626 by King Louis XIII's doctor, contains over 10,000 species. The grounds also include a small zoo known as La Ménagerie, and the Muséum National d'Histoire Naturelle, which includes the Grande Galerie de l'Evolution (where you can see thousands of naturalized animals from all over the world) and the 'Galerie de paléontologie et d'anatomie comparée' (same thing, but with skeletons).

A little district within the district. Very charming little streets on a hill on the west end of the 13 district. Nice for lunching/dining activities. This is the place where the band "Mano Negra" was hanging around.

Suspended above the train tracks this garden is surprisingly calm and chilled-out.

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.

Established in 1926, it was meant to show appreciation for Muslim help in fighting the Germans. The café serves excellent mint tea and North African food.

This charming scientific museum preserves the offices and laboratories of Pierre and Marie Curie, pioneers in the discovery of radioactivity. Their instruments, equipment, and furniture is arranged as it was during their critically important research. Guided tours in English available.

17th century church.

The museum is located in a 17th century house with a garden, and features the history and culture of Montmartre. Several famous artists had lived in the house including Renoir.

An 8-storey block of flats, built in 1932–1934.

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.

A former fortress and royal residence at the edge of the city, alongside the Bois de Vincennes. Most of the building is open to public.

One of the most eye-popping sights of Paris, the catacombs represent a network of labyrinthine tunnels, first excavated in the Roman period, that now house the remains of over 6 million burials removed here from the various overcrowded cemeteries and charnel houses all over Paris in the late 18th and early 19th centuries. Well worth a visit: the atmosphere is suitably morbid and gloomy (without being too scary), the dark tunnels containing neatly stacked piles of skulls and long bones. There is a limit to the number of visitors allowed within the Catacombs at one time (200 persons). So, if you arrive just after opening, you must wait until someone exits, approximately 45–60 minutes, before anyone is admitted. Steep stairwell on the exit of the catacombs. Can be challenging for the elderly or the unfit. Tickets can be purchased online at a small premium (€29, includes audioguide), allows you pick a date&time and to skip the long line