This contorting sculpture is the tallest in San Francisco.

This hotel has hardly changed in over a century, like a time capsule of old Oregon.

The failure of one component toppled this entire bridge during rush hour.

Remnants of 19th century vigilante justice.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

A gas station has taken the place of the home of the 19th American President.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

All that remains of a gigantic earth-moving machine.

Nuclear reactor created the plutonium used on Nagasaki.

One of the last few period-correct, hand-operated canal locks in the country.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

All aboard the world's longest miniature railway.

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.