With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

Austria’s oldest brewery makes beer with flaming-hot granite.

Caves famous for the dragon-slaying saint who lived there.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

Experience what life was like in Ireland during the Viking and medieval ages.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

A miniature of a lighthouse acts as a beacon for what transpires inside this location.

Every New Year's Day, locals don gaudy costumes and dive into the frigid Firth of Forth.

These characters from a Robert Louis Stevenson novel stand in an unlikely place.

A pair of stones embedded in an Edinburgh street memorialize one of the city's last public hangings.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

This early version of the guillotine was used to execute the man responsible for its construction.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

A 18th century graveyard and its astonishing cortege of macabre iconography.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Reportedly the "most handsome" market cross in Scotland.

Constructed in 1882, this jail once housed local inmates and the sheriff's family all under one roof.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

Many of Edinburgh's more unsavory characters spent their final days behind this door while awaiting their executions.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.