The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.

Inside a busy metro station, an impressive mural depicts the prehispanic city of Tenochtitlán.

A living memorial to the trees London lost during the Great Storm of 1987.

Decorated by local artists, the city's utility boxes have become three-dimensional canvases.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

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

The New Central Library is a masterpiece of contemporary architecture in the midst of downtown Calgary.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

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

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.

The blinking light atop the iconic landmark has been sending secret messages for decades.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

This small museum in a 17th-century building honors three iconic Scottish writers.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This enormous World War II relic is one of the largest wooden structures in the world.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

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

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.