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China - The cleverly designed Pearl Ring roundabout in the dynamic Chinese city of Shanghai serves traffic and pedestrians.

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Bulgaria - This roundabout set on the outskirts of the country's capital, Sofia, looks like a wristwatch.

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USA - The Soldiers' and Sailors' Monument in Indianapolis, Indiana looms over the city's twilight skyline.

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Thailand -

This extraordinary view of Bangkok's Wongwian Yai roundabout resembles an alien spaceship.

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Mexico - A remarkable bird's-eye view of Mexico City's Angel of Independence, a victory column on a roundabout on the major thoroughfare of Paseo de la Reforma.

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England - The Circus, which dates back to the 18th century, is an outstanding example of Georgian architecture. It's located in the historic city of Bath. In Latin, 'circus' means a ring, oval, or circle.

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Spain - Barcelona's Plaça d'Espanya is one of the city's most important squares. Traffic, however, follows a circular pattern around the fountain at the center of the square, designed by Josep Maria Jujol (1879–1949).

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Germany - In the dead of winter in the middle of nowhere, this roundabout in Bavaria appears as if etched out of the snow.

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Indonesia - The Selamat Datang Monument, also known as Monumen Bunderan HI (for "Hotel Indonesia roundabout") is located in central Jakarta.

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France - One of the great monuments of Paris, the Arc de Triomphe stands at the western end of the Champs-Élysées. Several avenues radiate from its broad traffic circle.

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Namibia - A beloved landmark, Christ Church in Windhoek stands rather incongruously on a traffic island.

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Mexico - Not really a roundabout, but this Mexico City traffic junction allows vehicles to join the highway by way of a slingshot lane design.

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Thailand - Traffic passes through Bangkok's Odeon Circle, where the Chinese gate stands on a roundabout junction.

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Portugal - Lisbon's Praça Marquês de Pombal is landmarked by a prominent column dedicated to the 1st Marquis of Pombal. This is the city's principal roundabout.

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Poland - A roundabout near Katowice, host city of the 2018 Climate Change Conference. Again, taken from this angle, the transport interchange resembles a giant wristwatch.

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Malaysia - The swordfish statue roundabout in Kota Kinabalu, the state capital of Sabah, is a familiar sight to passing motorists.

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South Africa - Cape Town's Green Point traffic circle bathed in sodium light.

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Iran - Tehran's Azadi Square is known for its centerpiece Azadi Tower, surrounded by an expansive oval-shaped highway of several lanes.

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USA - This traffic circle at Appleton, the county seat of Outagamie County in Wisconsin, is almost toy-like in its appearance.

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England - The roundabout in the picturesque village of Otford in Kent encloses a scenic duck pond.

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France - Did you know France has an estimated 32,000 roundabouts? In fact, the roundabout was pioneered by town planner Eugène Hénard in the early 1900s.

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Bulgaria - The ornate Alexander Nevski Cathedral in Sofia sits within a traffic circle. Vehicle movement, however, is restricted.

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Poland - The quiet village of Gniewino in northern Poland is distinctly rural in character.

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Thailand - Seen here is the Royal Park Rajapruek roundabout at Chiang Mai, replete with a carefully manicured garden.

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France - A roundabout in a residential area of Toulouse blends effortlessly into the environment.

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Italy - The Piazza di Villa Fiorelli in Rome is a pedestrian roundabout.

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England - Resembling a sprig of broccoli, this modest roundabout is affording swifter traffic flow in a verdant corner of the United Kingdom.

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Spain - A patchwork quilt of greenery distinguishes this traffic circle in Valencia.

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Germany - The impressive 19th-century Victory Column in Berlin is surrounded by a street circle.

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Pakistan - The enormous Gwadar roundabout under construction. Gwadar, a small fishing port, is being marketed as a new Dubai.

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