From Nazi cargo ship to Philly party boat: Life and times of the Moshulu

Before it was docked on the Delaware, 115-year-old vessel sailed all over the world.

Secret Philly: Inside one of the nation’s largest collections of LGBTQ history

Thanks to a $300k grant, the archives housed at William Way are finally getting proper treatment.

Memories from a Fishtown public pool that disappeared 50 years ago

Newt's swim spot was a community hub.

This Rittenhouse mansion hosts an international TV studio and Jackie Kennedy’s favorite fireplace

Stotesbury Mansion is home to a social club and an Emmy-winning series.

Inside Pennsylvania Hospital’s surgery theater, where patients screamed and women were jeered

Male doctors performed operations in "The Dreaded Circular Room."

Maps, mugshots and DA scrapbooks: Explore Philly’s past at the archives next to Yards Brewing

From rogues galleries to sketches of City Hall, it's all available on Spring Garden.

Secret Philly: Inside the historic Callowhill bank that was home to Stephen Starr’s hottest club

Today, the Northern Savings Fund building is finding new life as offices, exhibition space and (maybe) a speakeasy.

Why is it called Suburban Station if it’s in the middle of the city? That’s where the trains came from.

Why do we call Philly’s downtown ‘Center City’? Historians aren’t sure

It could stem from William Penn's original "Centre Square" — or have to do with the metropolis' shifting borders.

Behind the 10-foot walls of Girard College, where a whites-only legacy has been turned upside down

This centuries-old institution is the latest in our Secret Philly series.

Secret Philly: How the City Hall clocks spring forward for Daylight Saving Time

The 235-pound minute hands have to be manually adjusted.

Secret Philly: These 11 bars serve seriously great food

Great Italian at an Irish pub, Ethiopian at a Brewerytown dive and more hidden gems.

Secret Philly: The for-sale house Albert Barnes built before his famous museum

There's only one real piece of the famously quirky collector's work left in use for its original purpose: His other house in Merion Station.

Secret Philly: The rooftop tennis court on the edge of Center City

Built in 1984 for $1.7 million, the space once boasted basketball and handball courts, too.

Inside Pine Street’s Halloween, Philly’s hidden gem of a jewelry store

Henri David set up shop in this tucked-away rowhome-turned-store in 1990: 'It’s got to be handmade, or I’m not interested.'

Inside Philly’s Athenaeum: Napoleon and the Capitol Dome plans

In addition to books, this library has a secret basement that holds arts and architecture history, like the first renderings of the capitol building dome.

Inside Philly’s Mother Bethel AME Church, bastion of civil rights in the U.S.

The structure, on the National Registry of Historic Places, sits on the oldest parcel of land owned continuously by African Americans in America.

Behind the scenes at 30th Street Station: You’ve never seen these secret spots

That big retro board showing arrivals and departures is controlled by a computer running Windows 95.

Backstage at the Electric Factory: Where everyone from Kanye to Lady Gaga has gotten ready

There's a TARDIS backstage, Dr. Who fans. No, really.

The Wagner Free Institute: Inside the nearly hidden science museum right on Temple’s doorstep

Step inside, and step back in time to when rich businessmen moonlighted as collectors of prehistoric treasure.