See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This mysterious taxidermy man-beast of the seven seas resides at the Banff Trading Post.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This sculpture, residing in a quiet corner of a London park, honors the victims of 9/11.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The medieval woodcut-style artwork chronicles life in medieval London.

The bones of two medieval royal lions were discovered at the historic fortress.

The bronze uniforms commemorate the vital role of women during World War II.

Colorful murals by Jean Cocteau hide within this peaceful London sanctuary.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

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

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

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

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."