Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

Remembering the Alamo with a full-scale replica of the 1836 city.

The seamy, underground secrets of Portland's criminal past.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

The site of one of history's most indelible and horrific tragedies.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

An astounding collection of medical specimens, including bits of President Lincoln.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

A Civil War Museum with some notable medical antiques.

Steepest flood safety railway in the entire world.

World's largest herd of white deer populate a former U.S. Army depot.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.