A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

The Swedish flag over this small naval fort signals that the nation is at peace.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Stockholm's narrowest alley is barely over two feet wide.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

A winding, cliffside stretch of road overlooking the Delaware River.