1 - Notre-Dame Cathedral "Cathedrale de Notre Dame de Paris"
Like the Eiffel Tower, the Notre-Dame Cathedral is seen as a Parisian icon. Located right along the picturesque River Seine, the Notre-Dame Cathedral is considered a Gothic masterpiece and is often regarded as one of the best Gothic cathedrals of its kind in the world. Construction of the famous cathedral started in the late 10th century and final touches weren't made until nearly 200 years later. And once you get an eyeful of the cathedral yourself, you'll start to understand why it took so long.
2 - Musée du Louvre
If you only had time to visit one museum in Paris, it should undoubtedly be the Musée du Louvre. That's because the Louvre is not only widely considered to be one of the best art museums in Europe, but one of the best in the world as well.
3 - Eiffel Tower (Tour Eiffel)
Designed and constructed for the 1889 Exposition Universelle (the World's Fair), the Eiffel Tower was always meant to be a temporary structure, but it skirted demolition talks twice. The first time, at the beginning of the 1900s, the tower was kept around because of its transmission talents. Gustav Eiffel, chief architect of the Eiffel Tower, had a variety of scientific experiments tested on the tower with the hope that any discoveries would help prolong its lifespan.
4 - Jardin des Tuileries
Centrally located between the Louvre and the Place de la Concorde, the Jardin des Tuileries is a free public garden that spans approximately 55 acres. Though it was initially designed solely for the use of the royal family and court, the park was added to the UNESCO World Heritage list in 1991 (as part of the Banks of the Seine) and has been open to the public since the 17th century.
5 - Le Marais
Straddling the 3ème and 4ème arrondissements (districts), Le Marais is one of Paris' oldest and coolest districts – so cool, in fact, that French writer Victor Hugo (author of "The Hunchback of Notre Dame" and "Les Misérables") called it home.
6 - Sacred Heart Basilica of Montmartre (Sacre-Coeur)
Rising high above Paris, the Sacré-Coeur (meaning "Sacred Heart") looks more like a white castle than a basilica – but that's what it is. Towering over the eclectic neighborhood of Montmartre (once a hangout for Paris' bohemian crowd), this Roman-Byzantine masterpiece is easily recognized by its ornate ivory domes.
7 - Musée d'Orsay
Housed in a former railway station along the Left Bank, the Musée d'Orsay is regarded for its rich collection of impressionist works. You'll see paintings by French artists like Degas, Monet, Cezanne, and Van Gogh, among many, many others.
8 - Musee de l'Orangerie
An extension of Musée d'Orsay, Musée de l'Orangerie features a wide selection of impressionist and post-impressionist art. It is best known for its enlarged “Water Lilies” paintings by artist Claude Monet.
9 - Pere-Lachaise Cemetery (Cimetiere du Pere-Lachaise)
A cemetery as a tourist attraction? If any city can pull it of, it's Paris. Covering nearly 110 acres of the 20th arrondissement (district), the Père-Lachaise Cemetery is considered one of the most beautiful cemeteries in the world.
10 - Palais Garnier - Opera National de Paris
A masterpiece of architectural opulence, the Opéra Garnier – also known as the Palais Garnier –still exudes the same enigmatic atmosphere it radiated in the late 1800s. This palpable sense of intrigue and mystery that permeates the opera is due in part to its awe-inspiring Old World interiors as well as Gaston Leroux, the author of "Phantom of the Opera," for which the Garnier served as inspiration.
11 - Luxembourg Gardens (Jardin du Luxembourg)
A warm-weather oasis that offers the simplest of pleasures, the Luxembourg Gardens provide ample green space (61 acres) for sun-soaking and people-watching, plus there are plenty of activities to keep kids entertained.
12 - Arc de Triomphe
Situated at the western end of the Champs-Élysées, the towering Arc de Triomphe was commissioned by Napoléon to honor the Grande Armee during the Napoleonic Wars. The arch, which is the largest of its kind in the world, is adorned with several impressive, intricately carved sculptures.
13 - Versailles Palace (Chateau de Versailles)
The Château de Versailles, the sprawling palace and former seat of power, is located 14 miles southwest of Paris in Versailles. Every year, millions of travelers make the trek from Paris to bear witness to the chateau's world-famous grandeur in person. But between all of the gold figurines, dramatic frescoes and cascading crystal chandeliers you'll no doubt find in bulk throughout the chateau, you might be surprised to learn that King Louis XIV's extravagant former residence had pretty humble-ish beginnings.
14 - Paris Catacombs (Les Catacombes de Paris)
Not every inch of Paris is as romantic as you think – in fact, the Catacombs are downright chilling. Prior to the creation of the Catacombs in the late 18th century, Parisians buried their dead in cemeteries. But as the city continued to grow, burial grounds ran out of space, graves started to become exposed and stunk up surrounding neighborhoods. The limestone quarries located 65 feet beneath Paris eventually became the solution, providing ample and safe space for the city's deceased loved ones. It took 12 years to move 6 million bodies from all the Parisien graves.
15 - Seine River
You won’t have much trouble finding the Seine, as it flows directly through the heart of Paris. The river is perhaps one of the most famous waterways in the world and an attraction in itself. It's also useful for more practical reasons: It flows from east to west, dividing the city into the Left Bank and the Right Bank. Knowing where you are in relation to the Seine can help you find your way around during your trip.
16 - Galeries Lafayette Paris Haussmann
Whether or not you plan to shop, the Galeries Lafayette Paris Haussmann department store is a sight to be seen. What started as a small novelty shop in 1893 has since grown into an approximately 750,000-square-foot megastore containing hundreds of brands, from budget-friendly options like Levi’s and Nike to high-end labels like Prada and Cartier. And while you might be dazzled by the unending collection of fashionable goods, don’t forget to look up. The pièce de résistance of the luxury bazaar is the stunning neo-Byzantine glass dome 141 feet above the ground. There's also a glass walkway on the top floor of the building that allows the bravest of visitors to stand above all the action below.
17 - Montparnasse Tower Observation Deck
The Montparnasse Tower Observation Deck claims to have the best views in Paris – and once you reach the top, it's easy to see why. The lower deck stands more than 650 feet high and overlooks major attractions, like the Eiffel Tower, through floor-to-ceiling windows. Travel another 32 feet upward to the rooftop terrace, and you'll find panoramic vistas of the City of Lights 365 days a year. On a clear day, you can see as far as 25 miles in every direction.
18 - Louis Vuitton Foundation
Open to the public since October 2014, the Louis Vuitton Foundation is the brainchild of the LVMH group (which owns luxury fashion brand Louis Vuitton) and famed American architect Frank Gehry. In addition to the art gallery, Gehry also designed the Guggenheim Museum Bilbao in Spain and the Walt Disney Concert Hall in Los Angeles, among other renowned museums, university buildings and residences. Fitted with curved panels of glass and smooth concrete, the Foundation's daring and modern design stands out among Paris' abundance of centuries-old buildings.
19 - Moulin Rouge
If you’re looking for the quintessential Parisian nightlife experience, Moulin Rouge will likely fit the bill. The legendary cabaret club opened in 1889, wowing crowds with dazzling dancers, free-flowing Champagne and outrageous elements like a gigantic model elephant in the garden. With its rich history and extravagant performances, Moulin Rouge has become an important staple in the City of Lights.
20 - Conciergerie
Located next to Sainte-Chapelle, the Conciergerie was once a royal residence for various French leaders. At the end of the 14th century, King Charles V and the rest of the palace's inhabitants moved to new residences at the Louvre. The abandoned building was then turned into a new parliament and office space for the kingdom. However, during the French Revolution (and for many decades thereafter), the Conciergerie served as a prison compound to hold both political and common criminals. Most famously, it held Marie Antoinette, the fallen queen of France, in the weeks before she was executed by guillotine in October 1793. In the 19th century, Antoinette's cell was transformed into a chapel, and in 1914 the entire building was deemed a historic monument and opened to the public.