A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

An unusual round church in London with a Templar past.

Unbeknownst to many, an ancient burial mound hides in plain sight in Ueno Park.

This park boasts a unusual collection of curious monuments from around the world, from Micronesia to Antarctica.

A hole-in-the-wall antiquities museum in one of Tokyo's most popular megamalls.

Visitors to this park are welcomed by an ancient Japanese megalithic tomb that dates back to the sixth century.

A medieval, mosaic-lined baptistry built by a heretical Christian sect.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

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

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

This historical manor is complete with a magnificent garden.

This historic electric train has operated with regularity since the early 1900s.

This unassuming office building is home to what was once the world's largest pendulum clock.

A precursor to Taro Okamoto’s iconic Tower of the Sun.

A small museum in a ward on the east side of Tokyo showcases the works of one of Japan's greatest ukiyo-e artists.

In Asakusa, Tokyo's very own Walk of Fame.