This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

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.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

This Art Deco landmark claims to be the longest bridge over the shortest span of water in the world.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

After being lost for nearly a century, this historic bell finally returned home after its mysterious theft.

An autonomous oak in Alabama.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

The whimsical construction on the roof has given rise to many a Montgomery myth about its contents.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The naval commander’s proudest moment in battle is memorialized in this unique tomb at Arlington Cemetery.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

A monument to the forgotten French explorers and their landmark expedition.

Home of the only civilian casualty at the Battle of Gettysburg.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

A brick-paved former section of the historic coast-to-coast highway.

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

The birthplace of professional hockey on the shores of Portage Lake.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.