This sprawling museum holds one man's giant collection of real tanks.

Replica of an old Esso filling station, complete with Wayne gravity pump and outhouse.

A replica of where the Last Supper was held.

The world's largest fire hydrant is supposedly tornado-proof.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

Follow the path behind this treat-slinging camper van to a sculpture garden in the forest.

Rare videos and memorabilia await visitors inside this unique store.

When in Idaho, sleep in a giant potato.

This stunning home looks like it belongs in medieval Europe, not North Carolina.

This metal disk commemorates the birth of a historic American holiday.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

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

The oldest surviving presidential residence in the United States.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

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

One of the oldest of its kind.

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

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.