An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

An ode to the friendship between four Pacific Rim countries.

The classic Atari game's iconic aliens have invaded downtown San Diego.

The freeway that never was.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A couple turned their front yard into an artistic masterpiece.

North America's largest accredited model railroad museum.

Lucha Libre (Mexican Wrestling) themed taco shop.

Hidden beneath the streets of London is a secret subway that only carried mail.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The world's most famous donkey lives in this pen.

This nearly abandoned "company town" is a ghost of Puerto Rico's once-lucrative sugar industry.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

This small fort played a huge role defending Puerto Rico’s capital city.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The first Russian Orthodox church in the Catholic city of Rome in almost a thousand years.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Architectural monsters are devouring this palace's every door and window.