Megacitys - Wenn es Nacht wird in ...

Mexico City was once feared; today, the megacity is a tourist hotspot. The city has retained its fighting spirit – in some places for the sake of spectacle, in others for survival.

Lagos is growing faster than any other city in the world. A megacity of extremes: while many of its 25 million inhabitants live in poverty, money is no object in its clubs.

Extraordinary people, touching stories and mysterious places.

As night falls over the Thames, those sharp contrasts emerge that make London arguably the most interesting and international metropolis in Europe.

Rio de Janeiro is Sugarloaf Mountain, the Christ the Redeemer statue, and Copacabana. When night falls, culture and music pulsate – but it's also hard work in the "engine room" of the metropolis.

Between tradition, chaos, and constant upheaval: How does beleaguered Istanbul, with its 16 million inhabitants, manage to survive as a modern global city despite all the tensions?

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Vienna is beautiful. Framed by the facades of the Austro-Hungarian era, people enjoy culture and coffee, clattering past St. Stephen's Cathedral and the Sisi Museum in horse-drawn carriages. Until night falls.

When pilot Ky sees the Toronto skyline during her evening approach, it's the happiest moment of her day. The financial metropolis transforms into a vibrant, dazzling melting pot.

City of love, fashion metropolis, place of longing for millions of people – that is Paris, often described as the most beautiful city in the world.