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How ancient Romans made stronger concrete than today

Adults Cities
Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans' secret concrete recipe that has maintained so many of its now-ancient buildings.

The History of Hong Kong

Adults Cities
Its name means "fragrant harbor" in Chinese, but it could also mean city of change. This is the story of Hong Kong.

The Simple Solution to Traffic

Adults Cities
The way we can make traffic disappear.

GoPro: Paragliding Over Rio de Janeiro

Adults Cities
Soar over the coastline of Brazil's Sao Conrado beach with two paragliding amigos, Nader Couri and Joe da Silva.

Real life sunken cities

Adults Cities
Though people are most familiar with Plato's fictional Atlantis, many real underwater cities actually exist. Peter Campbell explains how sunken cities are studied by scientists to help us understand the lives of our ancestors, the dynamic nature of our planet, and the impact of each on the other.

PARIS in 4K - Timelapse Glidecam & Hyperlapse

Adults Cities
After the Color Run Paris , enjoy the city of Paris through Timelapses & Glidecam smooth shots !

25 Lost Cities

Adults Cities
A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, John looks at 25 lost cities.

GoPro: Roberta Mancino's Night Life

Adults Cities
GoPro Athlete Roberta Mancino embarks on a stunning wingsuit flight over Panama City at night.

Weeds - by Mona Caron

Adults Cities
"I'm inspired by the resilience of weeds. I look for them in the cracks of the sidewalks near the walls I'm about to paint, then I portray them at a scale that is certainly bigger than the attention we pay them...."

Flying eagle point of view

Adults Cities
A world premiere!! Victor, our white tailed eagle has taken of from the summit of the Eiffel Tower. An amazing point of view! For the first time you will see how Paris looks like from the back of a bird. First gliding over the Trocadero, Victor then plunges at 180 km/h to the ground!

How to Build a Better City

Adults Cities
There are things that all of us can do. Check them out.

Sparks: A Honda Celebration of Light Story

Adults Cities
A miniature story of three friends meeting up for a memorable night on the beach at the Honda Celebration of Light.

Old Man Canyon - Wiser

Adults Cities
Follow the journey of a boy that seeks adventure in the great city of Vancouver.

Google Self-Driving Car on City Streets

Adults Cities
Jaywalking pedestrians. Cars lurching out of hidden driveways. Double-parked delivery trucks blocking your lane and your view. At a busy time of day, a typical city street can leave even experienced drivers sweaty-palmed and irritable. We all dream of a world in which city centers are freed of congestion from cars circling for parking and have fewer intersections made dangerous by distracted drivers. That's why over the last year we've shifted the focus of the Google self-driving car project onto mastering city street driving.

Burj Khalifa Pinnacle BASE Jump

Adults Cities
Skydive Dubai sponsored Soul Flyers World Champions Vince Reffet and Fred Fugen break a new World Record by BASE jumping from above the pinnacle of the World's Tallest Building.

The Making of Unnumbered Sparks I Vancouver

Adults Cities
Learn about the making of Unnumbered Sparks, a monumental interactive sculpture in the sky created by artists Janet Echelman and Aaron Koblin for TED's 30th anniversary. Choreographed by visitors in real time through their mobile devices, at night, the sculpture becomes a crowd-controlled visual artwork on a giant, floating canvas powered by Google.

Fingerboarding in Taiwan

Adults Cities
Fingerboarding Is Like X Games For Your Hands