#10 Avenue Montaigne, Paris
This upscale street in the Champs-Elysees quarter is considered one of the world's top avenues for high fashion — Harry Winston, Christian Dior, and Salvatore Ferragamo all have locations here —but it's also one of the most exclusive residential neighborhoods on the globe.
Average price per square meter: $26,000
Who lives here: Marlene Dietrich (before her death in 1992), Canadian Embassy
Source: Billionaire and Wealth-X
#9 Fifth Avenue, New York
Fifth Avenue, especially the homes that front Central Park between 59th and 96th Streets, has long been a destination for the rich and famous. It's also home to every designer boutique imaginable and the Empire State Building, the Rockefeller Center, and, of course, the Saks Fifth Avenue flagship.
Average price per square meter: $28,000
Who lives here: Bill Murray, Tom Brokaw
Source: Billionaire and Wealth-X
#8 Ostozhenka, Moscow
This street in downtown Moscow is at the center of Russian history, dining, and luxury living. A five-level apartment on Ostozhenka Street once sold for $48 million, the most expensive exchange on this trendy avenue.
Average price per square meter: $29,000
Who lives here: Russian oligarch Alisher Usmanov
Source: Billionaire and Wealth-X
#7 Romazzino Hill, Sardinia
Romazzino Hill and its surrounding neighborhood have been a playground for billionaires since the 1960s. In 2012, Italian industrialist Carlo de Benedetti sold his Villa Rocky Ram for a cool $148 million.
Average price per square meter: $32,900
Who lives here: Saudi Arabian politician Ahmed Zaki Yamani, Russian oligarch Alexei Mordashov, royal family of Qatar
Source: Billionaire and Wealth-X
#6 Chemin de Ruth, Geneva
Many of the mansions on this stone street have swimming pools, landscaped gardens, and stunning views of the nearby Lake Geneva and United Nations buildings. Five properties on Chemin de Ruth sold for more than $13 million between 2008 and 2010.
Average price per square meter: $37,000
Who lives here: the Peugeot family, former French tennis player Henri Leconte, former French alpine skier Jean-Claude Killy
Source: Billionaire and Wealth-X
#5 Paterson Hill, Singapore
Paterson Hill is a calm residential cul-de-sac close to the Orchard Road Shopping Belt, known for its designer stores and Michelin-starred restaurants. The most expensive apartment building on this glitzy street is the Marq, which has a unit designed entirely by Hermes.
Average price per square meter: $42,500
Who lives here: Facebook co-founder Eduardo Saverin, former Miss Singapore Rachel Kum
Source: Billionaire and Wealth-X
#4 Boulevard du Général de Gaulle, Cap Ferrat, France
Situated along the Mediterranean Côte d’Azur, the exclusive Cap Ferrat peninsula is the world's most expensive non-urban location. This street in particular is home to a number of sprawling beachfront villas.
Average price per square meter: $79,000
Who lives here: Brad Pitt and Angelina Jolie, Paul Allen, Charlie Chaplin (before his death in 1977)
Source: Billionaire and Wealth-X
#3 Avenue Princess Grace, Monaco
Monaco fills up with billionaires during the F1 Grand Prix each May, but many wealthy people live here year-round. The Avenue Princess Grace runs along the waterfront and is the most exclusive street in Monaco. The Tour Odeon, a 550-foot luxury apartment building currently under construction on this street, will be the principality's tallest building when it's completed next year.
Average price per square meter: $86,000
Who lives here: Andrea Bocelli, Roger Moore, Lewis Hamilton, Helena Christensen
Source: Billionaire and Wealth-X
#2 Kensington Palace Gardens, London
Though its most famous residents may be Will and Kate, this quiet tree-lined street is also where many embassies are located, including those from France, Russia, and Japan. It's known as London's "billionaires' row" for a reason.
Average price per square meter: $107,000
Who lives here: the Duke and Duchess of Cambridge (and Prince George), Lakshmi Mittal, Russian oligarch Roman Abramovich, Bernie Ecclestone's daughter Tamara
Source: Billionaire and Wealth-X
#1 Pollock's Path, The Peak, Hong Kong
Located on the top of a mountain that has historically been a haven for Hong Kong's wealthiest, the world's most expensive street boasts stunning views of the skyline and harbor. Hong Kong real estate records were shattered in 2011 when an apartment at the Sky High complex (10-18 Pollock's Path) sold for $103 million.
Average price per square meter: $120,000
Who lives here: actor Stephen Chow, HSBC execs
Source: Billionaire and Wealth-X