Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

The world's second-largest sundial, made entirely out of stone.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

A blooming house of worship for the masses.

The oldest continuously inhabited street in America.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

A curious building honoring past and current members of a historic musical comedy troupe.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

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

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

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

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

A legendary boxing venue and ring featured in Rocky V.

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

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

This beloved marketplace mascot poops money and grants good luck.

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

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

The first American axe throwing club.

A startling, centuries-old subterranean marvel hides in plain sight.

An ancient iron pillar in Delhi that seems to be rustproof.