This ancient Corinthian helmet is South Korea’s only national treasure of Western origin.

Tracking the 1,500-year history of Korea's star cabbage.

Its humdrum facade only adds to its electrifying appeal: a rooftop with panoramic views of a shapeshifting metropolis.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

The site of the last royal wedding in Korea.

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

This grand temple complex from the Old Silla era of Korea is home to a stone pagoda that was build in the 7th century.

An early Korean refrigerator.

This human-made pond is part of a Korean palace complex first built in the 7th century.

Numerical symbolism abound at East Asia's oldest observatory.

The supreme shrine of the state.

Deep in the Negev Desert, the world's tallest solar tower looks like a sight straight out of science fiction.