The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Tiki luxury on Nob Hill.

Its buzzing collection honors vibrator history.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

One of Philadelphia's largest murals resides hidden under this bridge.

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

This elaborate towering structure was once famed for its revolutionary height.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

No one knows how many bodies are in this vault in a Chicago public park.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Home to a protest movement, a bombing, and a dramatic change in labor history.

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

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

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

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This historic hotel invented the chocolate brownie.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.