12 Best Sights in Rive Gauche (Left Bank), Geneva

The city first planted this gigantic, and accurate, floral timepiece in 1955 to highlight Geneva's seminal role in the Swiss watchmaking industry. Some 6,500 plants are required four times a year to cover its 16-foot-wide surface.

The city's landmark fountain, which shoots 132 gallons of water—the equivalent of four standard bathtubs—459 feet into the air every second at 125 mph, can be seen throughout downtown. The parks and promenades around the lake offer the opportunity to see it from almost 360 degrees, and a wooden walkway on the pier at dock Gustave-Ador makes it easier to view up close.

Conceived on a grand scale and erected between 1909 and 1917, this solemn 325-by-30-foot swath of granite pays homage to the 16th-century religious movement spearheaded by Guillaume Farel, Jean Calvin, Théodore de Bèze, and John Knox. Smaller statues of major Protestant figures, bas-reliefs, and inscriptions connected with the Reformation flank the lifelike giants as they hover over Bern, Geneva, and Edinburgh's coats of arms. Roger Williams is surrounded by Pilgrims praying on the deck of the Mayflower, and near Oliver Cromwell is the 1689 presentation of the Bill of Rights to King William and Queen Mary by the English Houses of Parliament. The Reformation's—and Geneva's—motto, Post Tenebras Lux (After Darkness, Light), spreads over the whole. The location is just below the Vieille Ville.

Originally part of a 15th-century hospital complex built outside the city to isolate victims of the plague, these verdant seven acres hold the mortal remains of Jean Calvin, Simon Rath, Guillaume-Henri Dufour, William Favre, Jorge Luis Borges, and Sergio Vieira de Mello (the United Nations special representative killed in Iraq in 2003), as well as many of the people whose names grace street signs all over town.

This pristine 15th-century sanctuary served as a Protestant temple, a butcher's warehouse, a foundry, and a government meeting hall before Napoléon's troops returned it to Catholicism in 1803. The second chapel on the left maps a structural lineage that began in AD 400, and the steeple dates from the 14th century. Today's whitewashed walls, strategic lighting, and stained glass frame weekly classical music concerts in summer. Attending a concert or a service (the latter occurs at 10 on Sunday) is usually your only chance to see the inside.

The town hall is the seat of politics in the canton and has a rich history. Representatives from 14 of 16 countries present signed the first Geneva Convention in the ground-floor Alabama Hall on August 22, 1864, enforcing the action of the International Red Cross, which had been created in Geneva the year before. The League of Nations also convened its first assembly here on November 15, 1920. The canton's executive and legislative bodies meet here; until 1958 government functionaries lived here. But the history of this elegant vaulted compound begins in 1455, when the city built a large fortified tower, the Tour Baudet, to house the State Council Chamber. Its ramp, an architectural anomaly added during the Reformation, was used by the councilors to reach the third-floor meeting hall without dismounting from their donkeys, a practice that gave name to the tower: baudet means donkey in French.

Jean-Jacques Rousseau, born in Geneva and the son of a Genevois watchmaker, is known to history as a liberal philosopher in part because the conservative governments in Geneva and Paris so thoroughly rejected his views. His statue on this former city bastion, erected reluctantly in 1835 (57 years after his death), was surrounded by trees and his face deliberately hidden from view until the 1862 construction of the Pont du Mont-Blanc gave Rousseau the last laugh. In 2012, for Rousseau's 300th birthday, the statue was turned so visitors can once again see his face.

Vaulted cellars and ground-floor kitchens display medieval graffiti, 15th-century tiles, and a guillotine in Geneva's oldest house, now a museum focused on life in the city from 1334 to the 1800s. Seventeenth-century ironwork, doors, and other fragments of long-demolished houses fill the first floor; a bourgeois home complete with 18th-century wallpaper is re-created on the second. The enormous Magnin Model (which depicts Geneva as it looked before its elaborate defense walls came down in 1850) is housed in the attic. Audio guides are available in English, French, German, and Russian.

Large, evocative wildlife dioramas complete with sound effects cover most major animal types at this spacious museum. Large quantities of fossils, gigantic crystals, precious stones, and a case full of polyhedrons ensure that the place is always swarming with local school groups. Swiss geology, the history of the solar system, and thematic temporary exhibits round out the collection; most labels are in French. The museum is a short walk away on the outskirts of the Vieille Ville.

This sloping park, once the private grounds of an 18th-century villa overlooking the lake, is filled with remarkable plant life, including a collection of cedar trees more than 200 years old, Geneva's biggest rose garden, orangeries, an alpine garden, and a collection of brightly flowering rhododendrons. The Orangerie and the Théâtre de Verdure stage performances and open-air concerts through the summer months.

Aristocratic town houses now overlook Geneva's opera house, the Musée Rath, the Conservatoire de Musique, and the gilded wrought-iron entrance to the Parc des Bastions, but until 1850 this wide-open space was the city's heavily fortified main southern gate. The equestrian statue at the center of the square honors Guillaume-Henri Dufour, the first general of Switzerland's federal army and the first person to map the country. The large bust of Henry Dunant, founder of the International Red Cross, marks the spot where public executions once took place.

Ancient roads met in this layered Vieille Ville square before heading south to Annecy and Lyon, east to Italy and the Chablais, north to the Rues Basses, and west through the center of town to the bridge. Once a Celtic cattle market, later flooded with refugees, it's still the quintessential Genevois crossroads where shoppers, lawyers, workers, and students all meet for drinks around an 18th-century fountain.