An architectural oddity hides in plain sight on this iconic London bridge.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Largest graveyard in all of Japan surrounds a famous mausoleum.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

A beautiful bamboo trail tucked in this famous Japanese shrine.

The quintessential Japanese rock garden has existed for more than 500 years.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The 10,000 Torii shrine.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

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

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

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

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

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

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

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

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

Celebrating the history of Hangul, the Korean writing system invented by King Sejong to improve his realm’s literacy.