Stepping Stones Museum for Children

A statue of Christopher Columbus was installed in Norwalk, Connecticut, United States.

The Lockwood–Mathews Mansion is a Second Empire style country house in Norwalk, Connecticut. Now a museum, it was built in 1864-68 for railroad and banking magnate LeGrand Lockwood. The 62-room 44,000 square feet (4,100 m2) mansion was listed on the National Register of Historic Places and was declared a National Historic Landmark in 1978.It has been described as "one of the earliest and finest surviving Second Empire style country houses ever built in the United States." It sits at 295 West Ave., in Mathews Park, where the Stepping Stones Museum for Children is also located.

Pine Island Cemetery (formerly Over River Burying Ground) is a historical cemetery in Norwalk, Connecticut. It is the second oldest cemetery in Norwalk. The cemetery is located behind Lockwood–Mathews Mansion on Crescent Street. The Connecticut Commission on Culture and Tourism added the cemetery to the state Register of Historic Places in May 2010.On December 16, 1708 the town council granted this piece of land for a burying place. John Benedict, Zerubabell Hoyt and Thomas Betts were appointed to select the location.

Norwalk Hospital is a not-for-profit, acute care community teaching hospital in the Hospital Hill section of Norwalk, Connecticut. The hospital serves a population of 250,000 in lower Fairfield County, Connecticut. The 366-bed hospital has more than 500 physicians on its active medical staff, and 2,000 health professionals and support personnel. The hospital was part of the Western Connecticut Health Network, which included two other hospitals - Danbury Hospital and New Milford Hospital - up until April 2019, when WCHN merged with Health Quest to form Nuvance Health.

The SoNo Collection is an upscale shopping mall in the South Norwalk neighborhood of Norwalk, Connecticut. It was announced and originally developed by GGP Inc. (General Growth Properties) in 2017; it has been owned and managed by Brookfield Properties, a subsidiary of Brookfield Asset Management, since its acquisition of GGP in 2018. The mall opened on October 11, 2019, and is the fourth mall in Fairfield County. The mall has adopted a phased opening process, including interactive art installations and community gathering spaces. It features southern Connecticut’s only Nordstrom and Connecticut's only Bloomingdale's as the anchor stores. It is located next to Interstate 95 and Route 7.

St. Mary is a Roman Catholic church in Norwalk, Connecticut, part of the Diocese of Bridgeport. As the first Catholic Church in Norwalk from which three other parishes developed, St. Mary's is considered the Mother Church of Norwalk.

The Yankee Doodle Bridge carries Interstate 95 (Connecticut Turnpike) over the Norwalk River in Norwalk in the U.S. state of Connecticut.

The Maritime Aquarium at Norwalk (formerly Maritime Center) is an aquarium located in the South Norwalk (or "SoNo") section of Norwalk, Connecticut. The aquarium features harbor seals, river otters, sharks, jellyfish, loggerhead turtles, and hundreds of other animals living in re-creations of their natural Long Island Sound habitats. Three touch-tanks feature stingrays, nurse sharks, crabs, sea stars, moon jellyfish and other coastal creatures. In addition to its exhibits, The Maritime Aquarium offers educational programs, year-round cruises on its 64-foot research vessel R/V Spirit of the Sound, special events and camps.

Wall Street station was a station on the Danbury and Norwalk Railroad (later the Danbury Branch of the Housatonic Railroad and the New York, New Haven, and Hartford Railroad) located in Norwalk, Connecticut. It opened in 1852 and closed around 1956. A new station at the site has been considered.

The Norwalk River Railroad Bridge (also known as the Walk Bridge) is a swing bridge built in 1896 for the New York, New Haven and Hartford Railroad. It currently carries Amtrak and Metro-North Railroad trains over the Norwalk River. The current swing bridge is located at the same site where, in 1853, a train from New York City plummeted into the river while the previous swing bridge was open, resulting in dozens of deaths. In 1896, the New Haven Railroad built the bridge and widened its route to four tracks, as it simultaneously built its South Norwalk Railroad Bridge over the intersection of Washington Street with North Main and South Main streets. The 562-foot (171 m) span, with a rotating swing span 202 feet (62 m) long was provided by the Berlin Iron Bridge Co. This type of swing bridge is one of just two on the Northeast Corridor. The swing span has a rim-bearing system of 96 rollers, allowing tall vessels to pass by. The span is one of only 13 of the company's bridges (and one of only two railroad bridges) that survive in the state as of August 2001. In 1907 the rail line was electrified with overhead catenary wires, which form a prominent feature of the bridge today. It is or was also known as Norwalk River Bridge. It was added to the National Register of Historic Places in 1987.It is one of eight moveable bridges on the Amtrak route through Connecticut surveyed in one multiple property study in 1986. The eight bridges from west to east are: Mianus River Railroad Bridge at Cos Cob, built in 1904; the Norwalk River Railroad Bridge at Norwalk, 1896; Saugatuck River Railroad Bridge at Westport, 1905; Pequonnock River Railroad Bridge at Bridgeport, 1902; Housatonic River Railroad Bridge, at Devon, 1905; Connecticut River Railroad Bridge, Old Saybrook-Old Lyme, 1907; Niantic River Bridge, East Lyme-Waterford, 1907; and Thames River Bridge (Amtrak), Groton, built in 1919. As a single movable span with aging mechanical mechanisms, the Norwalk River Bridge represents a frequent point of failure for Amtrak and Metro-North service and has been targeted for replacement with dual movable spans. The final design approved for the new Walk Bridge calls for a dual-span vertical-lift bridge.

The Norwalk rail accident occurred on May 6, 1853, in Norwalk, Connecticut, and was the first major U.S. railroad bridge disaster; 48 were killed when a train travelling at 50 mph plunged into the Norwalk Harbor off of an open draw (swing) bridge.The accident occurred on the New York and New Haven Railroad where it crosses a small inlet of Long Island Sound via a swing bridge. The approach from New York is around a sharp curve, so there was a signal indicating if the bridge was passable by trains: a red ball mounted upon a tall pole. At 08:00 that morning, the Boston express left New York with 200 passengers driven by a substitute driver for whom this was the third transit of the route. The train consisted of two baggage and five passenger cars. On approaching the bridge, the driver neglected to check the signal and only became aware that the bridge was open when within 400 feet (120 m) of it. The bridge had been opened for the passage of the steamship Pacific, which had just passed through. The driver applied the brakes and reversed the engine, but was unable to stop in time. He and the fireman leapt clear before the bridge and escaped serious injury. The engine itself flew across the 60-foot (18 m) gap, striking the opposite abutment some 8 feet (2.4 m) below the level of the track and sinking into 12 feet (3.7 m) of water. The baggage cars came to rest atop the locomotive; the front of the first passenger car was crushed against the baggage cars and then submerged as the second passenger car came to rest on top of it. The third passenger car broke in two; the front half hanging down over the edge of the abutment; the rear remaining on the track. Most of the 48 dead and 30 injured were in the first passenger car. A further eight people were reported missing. Many doctors were travelling on the train, returning from the Sixth Annual Meeting of the American Medical Association in New York; seven of them were killed. Amongst the unhurt was Dr. Gurdon Wadsworth Russell, who wrote an account of the accident for the Hartford Courant in which he says that the dead "presented all the symptoms of asphyxia from drowning, and were probably drowned at once, being confined and pressed by broken cars. Oh, what a melancholy scene that!" As a result of the public panic and indignation caused by the accident, the Connecticut Legislature imposed a law requiring every train in the state to come to a dead halt before crossing any opening bridge. The engineer was charged with gross negligence and held primarily responsible for the disaster. A similar accident occurred eleven years later in Canada with even greater loss of life, the St-Hilaire train disaster.

The Wall Street Historic District in Norwalk, Connecticut is a historic district that was listed on the National Register of Historic Places in 2009. The area encompasses the commercial and civic center of the Central Norwalk neighborhood, and includes 42 buildings, most of which are on the south side of Wall Street. Among the buildings included is an 1860 Gothic Revival church at the corner of Wall and Mott Streets.