Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Quito's historic, main square dates back to the 16th century.

An exhibition devoted to the life (and posthumous taxidermy form) of the last known representative of the Pinta Island Tortoises.

An important landmark in the history of algebraic logic.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

A folk art mecca famous among outsider art fans.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Railroad came. People came. Railroad left. Town died.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

A smoke stack so large, the Washington Monument could fit inside!

Multiple monuments to a grizzled old mutt that survived the landscape of Butte's treacherous Berkeley Pit.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

A classic carnival ride that was carved to be untouchable.

A white Buddhist temple with a golden restroom.

Count the statues to gain insight into your future from Buddhist disciples.

Memorial to one of the most fatal fires in both circus and U.S. history.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Who knew the Devil's domain was a hot spot for tubing?

A former copper mine which became a truly unsuccessful prison.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?