Take a self-guided tour through one of Colorado's most elevated mining districts.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

A multiversal transit station located right below a highway interchange.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

This spectacular track has run continuously since 1882.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

The largest self-built castle in the U.S., six decades in the making.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This naturally-sourced hot spring is now home to a clothing-optional resort.

A technicolor place of worship for Elevationists.

You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

A beautiful young girl said to have been buried alive in her coffin…

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.