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.

A miniature city built by a single hunchbacked monk.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The oldest working mechanical clock in the world.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

An homage to everyone's favorite prehistoric cartoon family.

Real bones which are said to have belonged to a Polish dragon.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Europe's largest prehistoric mound – burial site of a legendary king?

A mocking tribute to the past and modern leadership of Prague.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

What is the Thing?

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

Monument to a suicide protesting the Soviet invasion.

One of only two commuter aerial tramways in the United States.

Used as an example in one of the first dictionary entries for "museum" in 1706.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.