Monaco is a tiny sovereign city-state on the Mediterranean coast of the French Riviera, surrounded on land by France. The second smallest country in the world after the Vatican, and the most densely populated, it is a glamorous principality ruled by the ancient Grimaldi dynasty and synonymous with wealth, luxury, and high society. Famous for its casino at Monte Carlo, its harbour full of yachts, and its Formula One Grand Prix run through the streets, Monaco draws the rich of the world with its glittering setting and its celebrated absence of income tax.

Monaco's history is the story of a single family, the Grimaldi, one of the oldest ruling dynasties on Earth, and of how their rocky stronghold became the most glamorous small state in the world.

In 1297 a Grimaldi seized the fortress on the rock of Monaco, famously by a trick, gaining entry disguised as a monk before drawing his sword, an exploit still recalled in the two sword-wielding monks on the national coat of arms. The family has held the rock, with interruptions, for more than seven centuries since, one of the longest-reigning dynasties in the world, surviving by sheltering under the protection of more powerful neighbours, above all France and Spain.

Rainier the First, an early figure of the Grimaldi dynasty. In 1297 the family seized the rock of Monaco by trickery, one disguised as a monk, and has ruled the little state for more than seven centuries since.
Rainier the First, an early figure of the Grimaldi dynasty. In 1297 the family seized the rock of Monaco by trickery, one disguised as a monk, and has ruled the little state for more than seven centuries since.Credit: copie d'un portrait par Eugène-Louis CHARPENTIER (1811-1890) D'après Léon-Honoré LABANDE (CC0).

In the nineteenth century Monaco lost most of its territory, keeping only the rock and its immediate surroundings, but secured a guarantee of its survival from France. To rescue its finances, the ruling prince opened a casino in a district named Monte Carlo, and its spectacular success, followed by the abolition of income tax, transformed the little state into a byword for gambling, luxury, and the leisure of the very rich.

A photochrom of Monaco around 1900. The opening of the Monte Carlo casino in the 1860s, and the abolition of income tax soon after, turned the small, cash-strapped principality into a glittering resort for Europe's wealthy.
A photochrom of Monaco around 1900. The opening of the Monte Carlo casino in the 1860s, and the abolition of income tax soon after, turned the small, cash-strapped principality into a glittering resort for Europe's wealthy.Credit: Unknown authorUnknown author (Public domain).
The Casino de Monte-Carlo, opened in the 1860s, whose success rescued the principality's finances and launched its transformation into a playground of the rich. Monaco's own citizens, however, are famously barred from gambling there.
The Casino de Monte-Carlo, opened in the 1860s, whose success rescued the principality's finances and launched its transformation into a playground of the rich. Monaco's own citizens, however, are famously barred from gambling there.Credit: Steve Hedin (CC BY-SA 4.0).

The twentieth century sealed Monaco's fame. In 1956 the reigning prince, Rainier the Third, married the Hollywood star Grace Kelly, a fairytale union that captivated the world and gave the principality a glamour it has never lost, even after it ended in tragedy with her death in a car accident. Under Rainier and his son Albert the Second, Monaco has grown ever more prosperous and built out into the sea, cementing its place as a haven of the wealthy.

The 1956 marriage of the Hollywood actress Grace Kelly to Prince Rainier the Third, a fairytale union that captivated the world and gave Monaco a glamour it has never lost.
The 1956 marriage of the Hollywood actress Grace Kelly to Prince Rainier the Third, a fairytale union that captivated the world and gave Monaco a glamour it has never lost.Credit: Robert LeRoy Knudsen (Public domain).

Monaco is a minuscule strip of land on the Mediterranean coast, hemmed between the sea and the steep, dramatic slopes of the Maritime Alps that rise immediately behind it. With almost no level ground, the principality is intensely built up, its tall buildings stacked on the hillsides and crowded around its harbour, and it has repeatedly expanded by reclaiming land from the sea to make room for more. The result is one of the most densely packed and developed pieces of land on Earth, a vertical city-state of terraces, tunnels, and a famous deep-water port.

A satellite view of Monaco, hemmed between the Mediterranean and the steep slopes of the Maritime Alps, with the French border marked. With almost no flat ground, the principality is one of the most intensely built-up places on Earth.
A satellite view of Monaco, hemmed between the Mediterranean and the steep slopes of the Maritime Alps, with the French border marked. With almost no flat ground, the principality is one of the most intensely built-up places on Earth.Credit: Unknown (Public domain).
A map of Monaco's expansion by land reclamation since 1861. Desperate for space in its cramped setting, the principality has repeatedly pushed out into the sea, adding whole districts such as Fontvieille to its tiny territory.
A map of Monaco's expansion by land reclamation since 1861. Desperate for space in its cramped setting, the principality has repeatedly pushed out into the sea, adding whole districts such as Fontvieille to its tiny territory.Credit: Ventic (CC BY-SA 4.0).

Monaco is a hereditary constitutional monarchy, ruled by the Prince of Monaco, since 2005 Prince Albert the Second of the House of Grimaldi. Unusually for a modern European monarch, the prince retains real power: he appoints the head of government, the Minister of State, traditionally a senior French official, and shares law-making with an elected National Council whose powers are limited. Monaco is closely bound to France, which handles much of its defence and with which it forms a customs union, yet it remains fully sovereign. Its government is defined above all by the model that sustains it, a tax haven that levies no income tax on its residents, drawing the wealthy of the world to a principality where the ruling family, the state, and high finance are tightly interwoven.

The Prince's Palace of Monaco, the official residence of the ruling Grimaldi family. Unusually for a modern European monarchy, the Prince of Monaco retains significant governing power alongside an elected council.
The Prince's Palace of Monaco, the official residence of the ruling Grimaldi family. Unusually for a modern European monarchy, the Prince of Monaco retains significant governing power alongside an elected council.Credit: Nikolai Karaneschev (CC BY 3.0).
Prince Albert the Second of Monaco, who has reigned since 2005 as head of the Grimaldi dynasty. He rules a sovereign principality bound closely to France yet famous for its wealth, its glamour, and its absence of income tax.
Prince Albert the Second of Monaco, who has reigned since 2005 as head of the Grimaldi dynasty. He rules a sovereign principality bound closely to France yet famous for its wealth, its glamour, and its absence of income tax.Credit: Lula Oficial (CC BY-SA 2.0).
Flag of Monaco.
Flag of Monaco.

The flag of Monaco has two horizontal bands of red over white, the heraldic colours of the ruling House of Grimaldi, derived from the family's ancient coat of arms. The simple, bold design is one of the oldest national flags in continuous use. It is, however, virtually identical to the flag of Indonesia, which differs only in its proportions, a coincidence between two nations on opposite sides of the world, each flying red over white as an emblem of a heritage entirely its own.

Monaco is a Roman Catholic country, and Catholicism is the official state religion, reflecting the deep historical ties of the principality and its ruling family to the Church. The faith is woven into the ceremonial life of the state and the calendar of the small nation, and the cathedral of Monaco, where members of the princely family are married and buried, including Princess Grace, is an important national landmark. While religious freedom is guaranteed and the cosmopolitan population includes many faiths, the principality's Catholic heritage remains central to its official identity.

Monégasque cuisine reflects the principality's Mediterranean and Provençal setting, with strong ties to the cooking of neighbouring France and nearby Italy. Local specialities include barbagiuan, a fried pastry stuffed with chard and cheese, and socca, a thin pancake made from chickpea flour, both shared with the surrounding Riviera. Seafood from the Mediterranean, olive oil, vegetables, and herbs feature throughout, alongside the refined French haute cuisine of Monaco's celebrated restaurants. The food thus ranges from humble local street snacks to some of the most luxurious dining in the world.

Monaco has essentially no agriculture, a consequence of its tiny size and the near-total absence of open land in one of the most densely built environments on the planet. There are no farms, fields, or significant cultivation, and the principality imports all of its food, chiefly from neighbouring France. Its economy is instead entirely urban and service-based, resting on tourism, the famous casino and gaming, banking and finance, luxury real estate, and its status as a tax haven, which together have made this landless city-state one of the wealthiest places in the world.

More than any statistic, Monaco is defined by its image, a byword for wealth, glamour, and the leisure of the very rich. Its harbour bristles with the yachts of billionaires, its casino draws high society, and its famous absence of income tax has made it a magnet for the world's fortunes, from business magnates to sporting stars. Nowhere is the spectacle more concentrated than in the Monaco Grand Prix, held on the principality's streets since 1929, a Formula One race threaded through the narrow roads, tunnels, and harbourside of the city itself. Slow, tight, and hemmed by barriers, it is one of the most prestigious and glamorous events in motorsport, a weekend when the world's attention, its cameras, and its wealth converge on the tiny state.

The Monaco Grand Prix, run through the streets of the principality since 1929. Threaded past the harbour, the casino, and through a seafront tunnel, it is one of the most prestigious and glamorous races in Formula One.
The Monaco Grand Prix, run through the streets of the principality since 1929. Threaded past the harbour, the casino, and through a seafront tunnel, it is one of the most prestigious and glamorous races in Formula One.Credit: Unknown photographer (Public domain).

Monaco has a population of around 38,000 people packed into its tiny area, making it the most densely populated country in the world. Remarkably, native Monégasques are a minority in their own country, outnumbered by French, Italian, and other foreign residents drawn by the principality's wealth and tax regime, among them many of the world's richest people. French is the official language, with Italian, English, and the traditional Monégasque dialect also heard. The population is concentrated in the principality's famous districts, including Monte Carlo, on its crowded Mediterranean hillsides.

The district of Monte Carlo rising above the Mediterranean. Around 38,000 people are packed into Monaco's tiny territory, making it the most densely populated country on Earth, though native Monégasques are a minority among the wealthy foreign residents drawn to it.
The district of Monte Carlo rising above the Mediterranean. Around 38,000 people are packed into Monaco's tiny territory, making it the most densely populated country on Earth, though native Monégasques are a minority among the wealthy foreign residents drawn to it.Credit: Tobi 87 (CC BY-SA 3.0).