This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

The oldest continuously occupied public building in the United States.

A natural formation that resembles a camel resting in the New Mexico desert.

Thousands of mounted insects, and some live ones, hide within an otherwise ordinary shopping mall.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Go take a picture with the inventor of the daguerreotype photographic process.

This 90-year-old building is home to possibly the most New Englandy social club in existence.

Turns out you can see the world without ever leaving Maine.

A unique auditory experience right on the sidewalk.

A multiversal transit station located right below a highway interchange.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

True to its name, this little house presents like a dollhouse, and surprising details are revealed with a quick peek through the window.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Where three rails and three centuries of transportation meet.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

The tiny, studious rodents greet visitors to the National Archives of Finland.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

An alien church provides much needed silence in the midst of a Finland shopping center.

A subterranean house of worship carved right out of the bedrock.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.