Numerical symbolism abound at East Asia's oldest observatory.

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

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

A theme park made of glass, from the gleaming books on the shelves to the crystal fish in the mirror lake.

A family of distorted sculptures stands outside Seoul's former imperial palace.

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

An arts and culture complex that was once a derelict American military installation in the civilian control zone of the DMZ.

A symbol of hope, survival, and national character, especially after it rose phoenix like from the flames.

A large visitor's complex and place of remembrance on the outskirts of the DMZ.

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

The best place for scenic views of the DMZ and North Korea.

South Korea's largely symbolic, barely used gateway to the North.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Drink wine handed out through a window as part of an age-old tradition.

A medieval weapon rumored to have been used by the brilliant poet himself.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Secret refuge and museum of the Duke of Florence.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The oldest operating pharmacy in the world features 800-year-old recipes.