Singapore's landscaping project is home to 18 incredible Supertrees.

All that remains of an ancient royal palace is a water channel that was used for drinking games.

Visiting this grotto is symbolic of a spiritual journey into Nirvana.

An early Korean refrigerator.

This tomb's name derives from a famous painting of a white horse found inside.

The headquarters of Korea’s provisional government later became the site of a prominent statesman's assassination.

The site where the Emperor of Korea performed the long-forbidden "rite of heaven" to demonstrate his absolute sovereignty.

Only a few pieces remain of a grand 16th-century water clock that once announced the changing hours with the sound of bells, gongs, and drums.

The supreme shrine of the state.

Numerical symbolism abound at East Asia's oldest observatory.

The name of the only golden Buddhist temple in Korea translates as "the temple that protects the country."

The 400-year-old remains of the samurai invasion of Korea.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

Secret North Korean passage discovered below the world's most dangerous border.

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

The memorial honors the lives of rhinoceroses killed by poachers.

This wildlife trust is dedicated to orphaned elephant rescue and conservation.

The farmhouse owned by the Danish author who wrote "Out of Africa" is now a museum honoring her legacy.

This tourist village in Nairobi celebrates the traditional lifestyles and customs of Kenyan tribes.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

Just outside of Nairobi lies a large estate surrounded by endangered Rothschild giraffes, who have been fed from the window by Mick Jagger and Walter Cronkite.

The engine block of a British Royal Mail Ship marks the spot of her demise, caused by the Great Gale of 1856.

A 19th-century relic of timekeeping.