An enormous goose sits atop this nest-shaped home.

A local dive where religious kitsch, Southern identity, and queer culture collide.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The massive machine creates cracking displays of indoor lightning.

Narrowest house in Boston.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The Boston square dedicated to the dark poet who was born nearby.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

A study of Fascist era Art Deco design in Italy.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

A lush indoor jungle fills this bustling Madrid transportation hub.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Five million people are laid to rest here, more than the population of Madrid itself.

This lucky bronze frog was gifted to Madrid by a casino.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.