The You're listening to Doctor. I'm Vanessa Lowe. I love to walk alone at night, traveling around the U.S. Boston and New US, Boston, in New Orleans.

Lisbon, Barcelona, Uruguay in Montevideo and Buenos Aires,

Istanbul, and Greece, Lithuania, Nepal, and Sri Lanka.

Sometimes it's a little scary, but the worst things that have ever happened to me happened in broad daylight.

So I'm not any more scared at night than I am during the day.

You know, you learn to be on alert and there's only so much you can do.

It's a complete privilege. It's a whole other world.

For the last several years writer Caitlin Meyer has been traveling around the world

and taking pictures during her walks alone in the cities and villages she passes through. Her walks take place

when few others venture out, particularly women. The middle of the night, or

really early in the morning is probably my favorite time.

Like after the bar is closed, a while after the bar is closed,

so all the drunks have gone home.

So like three or four, that's that sweet spot, that quietest point of the night.

Not many people are up and about at that time. So it feels private and the people that you do see, it feels like there's almost an intimacy.

Even if you know a lot of the people that I would run into

were maybe struggling with their own demons.

There was a recognition that we're both out

at a time when most people aren't.

And I kind of relate to the people

who are out at night. A lot of the homeless here are mentally ill and my

mom was bipolar and I see a lot of homeless people and I think, yeah, that's mom without us.

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