One of corporate America's best-kept secrets is also one of the most publicly displayed.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

The best-preserved Roman small town in North Africa.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

Breathtaking and huge 430 year old maps of Italy.

This historic spot was where America's involvement in the Vietnam War officially came to an end.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

The pockmarks across the building's facade are remnants of the Blitz.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

This rare volcano spews the strangest and (literally) coolest lava in the world.

These coffin-like Brutalist balconies were inspired by a nearby mine.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The world's largest concentrated solar power plant.