This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

You can release a young butterfly at this beautiful indoor garden.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

The only castle in North America to ever house European sovereigns.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

Recently revamped museum of Fijian history located within a gorgeous colonial-era garden.

One of Auckland's oldest cemeteries was partially demolished during the construction of a major highway in the 1960s. 

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

One of the few remnants of an extensive tram network that once made Buenos Aires the “City of Trams.”

What was once rural farmland owned by the Dominican Order is now an artisanal crafts market enveloped by Santiago’s urban sprawl.

What was once a unique system of urban elevators is turning into a mechanical ruin.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

Originating in the 16th century this fort is far more than a military structure.

This peaceful, round shrine in the middle of the Sri Lankan jungle acts as a beacon of peace.

This quirky collection of furniture also happens to be a public art installation.

Losing lottery tickets are deposited at this shrine in hopes of better luck.

A Buddhist temple on an artificial island that houses a monument to the fugu fish.

Hundreds of Buddhas in a re-discovered Indonesian temple.