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 bird statue was created to mark the site of a radio transmitter.

A unique attraction and museum dedicated to exploring iconic roadside structures.

Spectacular views await visitors to this lake.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The only road through the heart of Glacier National Park.

The only thing these street signs will help you navigate is your imagination.

Welcome to a starkly beautiful sanctuary where the buffalo roam.

This rail trail culminates in a three-mile land bridge only accessible to cyclists and pedestrians.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A working farm as life was in the 1920s.

Victory on this battlefield catapulted William Henry Harrison to the presidency in 1840.

This 19th-century windmill was moved, stone by stone, in the middle of Kansas.

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

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.