Take a steam-powered ride straight out of the past on this Appalachian rail line.

This historic little railroad runs through some of the most beautiful scenery in Germany.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.

What do we know about the real woman behind one of the Beatles' most famous songs?

Many generations of travelers have passed through the steep, smooth walls of this canyon.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

This large, circular tomb is the final resting place of the first emperor of Rome.

A hidden three-foot-wide house separates these two regal churches.

This mountain trail inspired Nietzsche to complete his magnum opus.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

Denmark’s never-ending bridge.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

You can only access this hermitage by crawling under a ledge suspended above an overhang.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The steepest classic funicular in the world glides along a dizzying incline.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

The cathedral of a controversial, conservative, schismatic sect that declared the Catholic Church heretical and founded its own succession of popes.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

A science fiction-inspired apartment building designed by a famous Spanish architect.