The "Seinfeld" diner.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Try not to get slimed in Tribeca.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A beautiful riverside mansion where the intellectual life of early-20th-century Argentina flourished.

The house of a former Argentinian president stands protected within a large glass case.

A pocket of serenity in hectic Buenos Aires, complete with a peaceful courtyard and massive library.

A pocket of Buenos Aires with an unusually high concentration of psychotherapists.

The humble tomb of an Argentine general, hand-built by his son using stones brought down from the Andes.

A beautiful young girl said to have been buried alive in her coffin…

This beautiful fountain was sculpted by a female artist who was ahead of her time.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

A bright little alley in La Boca is a part of tango history.

A tower devoted to — and modeled after — the Divine Comedy.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

There are millions of temples in India, but only one prominent temple dedicated to the Hindu creator god.

A pair of nearly 1,000-year-old temples profusely covered in meticulous stone carvings.

An ancient curse kept humans from living on the water, and now it's brimming with rare wildlife and is one of the most pristine rivers in India.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Sacred Indian temple that’s all monkey business.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

This abandoned stepwell is one of the largest, deepest, and certainly one of the creepiest in India.