A trailblazing sovereign nation tucked in the American state of Wisconsin.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

This mysterious hill seems to pull objects uphill.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This unassuming riverbank is Missouri’s first designated site in the National Underground Railroad Network to Freedom.

This one-room schoolhouse played a significant role in the education of Black children for almost 100 years.

Dating to 1793, this is the oldest building in Poolesville.

One of the earliest and best-preserved buildings in Charles County, Maryland.

The oldest surviving one-room schoolhouse in Montgomery County, Maryland.

An unusual sculpture, an interesting history, in a strange place, for a good cause.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

This one-room cabin where the young colonel slept during the French and Indian War.

Built by the patriotic residents of Boonsboro in a single day.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

Home to a protest movement, a bombing, and a dramatic change in labor history.

The only public school for Black children in the region from 1895-1936.

Once the center of a thriving early Black community called Martinsburg.

This statue honors the author's groundbreaking family story.

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

A Maryland museum dedicated to Black history, housed in a historic church.

The largest known Ancient Egyptian obelisk.