Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

Illegal drag racing two stories beneath Chicago’s streets.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

When flour explodes, it's not a pretty sight.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

This handsomely carved wooden church is more than 800 years old.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This extensive collection covers thousands of years of Polish military history.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Where the lovelorn find a home for their sentimental keepsakes.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Ancient snack bar of the Roman Empire re-opened.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.