Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Once the home of a hermetic monk, this cave now houses a small church.

Six peaceful acres in a residential neighborhood dedicated to art and peace.

A Beaux-Arts triumph set to become Ford's innovation campus

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The fairy tale castle of the "fairy-tale king."

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Haunting and beautiful trees, doomed to die.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This snug medieval lane is one of the narrowest streets in the world.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

A hugely vast Irish landscape of barren rock that stretches for miles.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Cozy basement bar sports an inventory of over 2,000 beers.

This beautiful, historic church looks like something out of a simpler past.

This private residence was the template for one of the most beloved television homes of all time.

The little bear in the "funny kind of hat" has made his way from London back to Peru.