These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

The tiniest little stage in New York.

Hundreds of antique bank vault locks on display in New York City.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Read a book next to a Midtown waterfall.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

This Transylvanian church has changed its denomination four times.

Packed to the ceiling with antique taxidermy and hunting arms.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

A medieval church built up to defend its village.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A stunning 18th century pharmacy and medieval chemist's collection.

Gigantic Romanian salt mines used to heal respiratory conditions.

Known as the Hintz House, this medieval pharmacy has been an apothecary's haven for nearly 450 years.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Something's watching you.

This snug medieval lane is one of the narrowest streets in the world.

The Natural History Museum that time forgot.