An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The world's oldest bookshop still in operation.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

This unassuming layer of clay boasts an out-of-this-world origin story.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

A steeple in the shape of a golden hand pointing straight up commemorates Zebulun Butler, the first full-time pastor of this Mississippi church.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

This humble hole-in-the-wall is home to an incredible pig ear sandwich and serious civil rights history.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

This monument to the victims of a tragic explosion is said to turn and look at passing cars.

A 200-year-old bar is all that remains of one Mississippi River town's rough-and-tumble past.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

A 30-mile-long glacially-carved canyon leads to a massive pair of glaciers.

This simple, broken column marks the final resting place of one of America's most famous explorers.

The grave of the 19th-century sea captain who coined the phrase "Old Glory" can be found in this quiet cemetery.

Ornate limestone building now filled with geologic specimens, and more.