One of the most important yet well-hidden museums dedicated to the history of medicine.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

The oldest surviving presidential residence in the United States.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

A legendary boxing venue and ring featured in Rocky V.

Alexander Hamilton’s creation caused quite a bit of controversy.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

This beloved marketplace mascot poops money and grants good luck.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

A granite monument honors a beloved World War II canine mascot.

The final resting place of some of Staten Island's earliest settlers and their descendants.

One of New Jersey's oldest churches is a historical treasure trove.

A "Bugseum" dedicated to all things insect-related resides behind a pest control company.

An unusual and eclectic collection of local historical memorabilia.

The abandoned coal loading dock is a canvas for unsanctioned art.

A tiny, unmarked beer and whiskey bar above an Ethiopian restaurant in West Philly fails to conceal live bluegrass.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.