A look inside metro Detroit's largest USPS facility during holiday shipping rush

How Stuff Works: An inside look at a USPS Sorting and Delivery Center

Portland USPS Processing and Distribution Center takes on the holiday rush

Frustration grows over package delays at Indianapolis USPS hub

Systems at Work

Will the U.S. Postal Service be a part of our future the way it's been a part of our past?

'It has mail from wall to wall.' Packages stuck in transit at Allen Park facility

ABC15 gets an inside look at USPS sorting facilities amid holiday season

An inside look at largest USPS distribution facility amid holiday shipping rush

USPS Unveils New Small Package Sorter That Will Help Expedite Package Processing Times

USPS test: We mailed 4 packages with GPS trackers to see how quickly they got there

Poor planning at metro Atlanta USPS facility reason to blame for missing mail

Many lost UPS and FedEx shipments are handled, auctioned in Utah

Kentucky residents still waiting on mail after USPS delays

Behind the scenes: USPS Processing and Distribution Center in Greenville

Inside Central Florida's USPS facility for the holidays

Virtual Field Trip: "Clover Post Office"

We tracked 5 packages with AirTags through priority USPS mail to test out delays

USPS employees show piles of packages, 'total chaos' inside Louisville facility

The Journey of Your Mail: How Postal Sorting Works

Post Office | Virtual Field Trip | KidVision Pre-K