Jessica Dillinger

Written by Jessica Dillinger

: Mail man reaches out of his truck to deliver mail.

United States

Why the US Postal System Still Uses ZIP Codes

Panoramic aerial view of Boston, Massachusetts

United States

US Cities That Have No Grid System

An aerial shot shows two workers in safety vests assessing a large sinkhole that has opened up near a path, disrupting the urban landscape

United States

The Largest Sinkholes in America and the Towns They Swallowed

Tornado forming in a field while storm chasing in Colorado.

United States

Which US States Are Part of Tornado Alley?

A map of the United States showing the steps in which the US grew over time

United States

Which US States Are Part of the Louisiana Purchase?

Strasburg Rail Road in Pennsylvania.Editorial credit: Ritu Manoj Jethani / Shutterstock.com

United States

Historic US Train Towns You Can Still Visit Today

Sunlit Sukakpak Mountain reflected in a small lake surrounded by brightly colored tundra in late August in the Brooks Range of Alaska.

Alaska

Brooks Range, Alaska

Landscape of beautiful nature. Blue Ridge Parkway road trip. Mount Mitchell Overlook parking place in Appalachian mountains landscape.

North Carolina

Mount Mitchell: The Tallest Peak East of the Mississippi River

Crazy horse in South Dakota.

South Dakota

Crazy Horse Memorial

united states-mexico border map

United States

Which US States Border Mexico?

Lebanon, Kansa: Park at Geographical Center of USA marker

Kansas

Which City Is the Geographic Center of the Contiguous US?

Jefferson Memorial at Cherry Blossom Time

United States

Potomac River

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