Examining how much time the world's 18 million elevators save people and their cost.

Roads evolve from foot paths to high-speed, limited access highways.

Enclosed shopping malls change the way people shop, think about shopping and change how people spend time.

The invention of the sealable plastic container in 1946 change the way people shop for food, the way we cook and the way we eat.

Discovered by accident in 1946, the microwave oven revolutionized kitchens and it is one of the most ubiquitous household appliances in the world.

Originally invented to save lives, the disposable cup would become an international symbol of busyness, a must-have multitasking accessory.