
The Adolphe Bridge is a double-decked arch bridge in Luxembourg City, in southern Luxembourg. The bridge provides a one-way route for road traffic across the Pétrusse, from Boulevard Royal, in Ville Haute, to Avenue de la Liberté, in Gare. Its upper deck is 153 m in length and carries two lanes of road traffic, and two pedestrian footpaths. Its lower deck, opened in 2018, suspended beneath the upper deck, is 154 m in length, and carries a dedicated bidirectional bicycle path, with access provided for pedestrian use. As of 13 December 2020, following the completion of the second phase of the construction of the city's new tramline, the bridge carries bidirectional tram traffic on its upper deck.

The Bock is a promontory in the north-eastern corner of Luxembourg City's old historical district. Offering a natural fortification, its rocky cliffs tower above the River Alzette, which surrounds it on three sides. It was here that Count Siegfried built his Castle of Lucilinburhuc in 963, providing a basis for the development of the town that became Luxembourg. Over the centuries, the Bock and the surrounding defenses were reinforced, attacked, and rebuilt time and time again as the armies of the Burgundians, Habsburgs, Spaniards, Prussians, and French vied for victory over one of Europe's most strategic strongholds, the Fortress of Luxembourg. Warring did not stop until the Treaty of London was signed in 1867, calling for the demolition of the fortifications. Ruins of the old castle and the vast underground system of passages and galleries known as the casemates continue to be a major tourist attraction.
The Château de Septfontaines is located in the Rollingergrund district of Luxembourg City. Now a listed building, it has been associated over the years with Luxembourg's Villeroy & Boch porcelain factory, which closed in 2010.

Fort Thüngen is a historic fortification in Luxembourg City, in southern Luxembourg. It is sited in Dräi Eechelen Park, in the Kirchberg quarter, in the north-east of the city. It is also colloquially known as Three Acorns in reference to the acorns that sit atop each of the three towers.

The Grand Ducal Palace is a palace in Luxembourg City, in southern Luxembourg. It is the official residence of the Grand Duke of Luxembourg, and where he performs most of his duties as head of state of the Grand Duchy.
The Monument of the Millennium is an archaeological site and reconstruction in Luxembourg City, in southern Luxembourg. The site was designated in 1963, on the millennial anniversary of the foundation of Luxembourg City by Siegfried. The original plan, hatched by the communal and national governments, was to establish a lasting monument on the Bock, the promontory on which Siegfried's original Luxembourg Castle was built. However, during construction, the foundations of the stronghold were uncovered, prompting the government to abandon its original plans, and restore the remains.

Musée Dräi Eechelen is a museum in the Kirchberg district of Luxembourg City in the Grand Duchy of Luxembourg. Opened in July 2012 in the fully restored 18th-century Fort Thüngen, its permanent exhibition traces Luxembourg's history from 1443 to 1903.

Neumünster Abbey is a public meeting place and cultural centre, located in the Grund district of Luxembourg City in southern Luxembourg.

The Place d'Armes is a square in Luxembourg City in the south of the Grand Duchy of Luxembourg. Centrally placed in the old town, it attracts large numbers of locals and visitors, especially in the summer months. It originally served as a parade ground for the troops defending the city.

Place Guillaume II is a town square in Luxembourg City, in southern Luxembourg. The square lies to the west of Krautmaart and to the north of Boulevard Franklin Delano Roosevelt in the heart of Luxembourg's historic Ville Haute quarter. It is colloquially known as Knuedler, from the Luxembourgish language's word for 'knot', referring to the knot in the belt worn by Franciscan friars.

The Schueberfouer is the annual Luxembourg City funfair held on the Glacis square in the city district of Limpertsberg. The 680th edition of the largest amusement park in the wider region beyond national borders will start on 20 August 2021 and ends on 8 September 2021.