Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The walls of the iconic dome are hollow and have a secret stairway.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A prime example of New Orleans' unique architecture these early 20th century homes were built to look like steamboats.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

A museum and shop on Bourbon Street located in the French Quarter.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A lush green oasis in the middle of Chicago.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The first American department store, and home to the largest operating musical instrument in the world.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.