By Chris Morris

PHILADELPHIA (CBS) – On today’s APP-tastic and outta SITE – Time Shutter.

READ MORE: Philadelphia School District Students, Staff To Resume Masking As COVID Cases Continue To Rise In City

Ever been walking down a street and wondered what it looked like 100 years ago? The Time Shutter app lets you visualize the past, offering vintage images of New York and San Francisco.

READ MORE: West Philly Double Shooting Leaves 30-Year-Old Man Dead, Teen Hospitalized: Police

Just hold your phone up in front of you – and slide your finger across the screen to see the area a century ago. Not headed to either of those cities? Versions for Chicago, London and Paris are coming soon.

MORE NEWS: Police Investigating Series Of Gunpoint Robberies In Center City, West Philadelphia

Check out the Time Shutter app.