This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A restaurant and observation deck built in a unique broadcasting antenna.

The most visited, and possibly most controversial, museum in Germany.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

The home of a formerly enslaved man who went on to become a prospector, entrepreneur, and activist for Black rights.

The final resting spot of the Colorado Transportation Department's beloved unofficial mascot.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

This iconic science fiction house still looks like something from the future.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

This spectacular track has run continuously since 1882.

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