Lonely Planet: Maureen & Tony Wheeler
Andrew Holder for NPR
In 1972, Maureen and Tony Wheeler bought a beat-up car and drove from London "as far east as we could go."
They wound up in Australia, by way of Afghanistan, India and Thailand.
Their notes on how to travel on a shoestring became a book, which grew into Lonely Planet — the largest travel guide publisher in the world.
How You Built That
An update with Melanie Colón, a frustrated renter who created an easier way to communicate with noisy neighbors, called Apt App.