This small Roman arch was transformed into a dwelling by the founder of the Trinitarian Order.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

A sculpture serving as an homage to Pope John Paul II.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This unassuming bridge is most likely one of Michelangelo's unfinished masterworks.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

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

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

This haunted 17th-century pub was moved to a new city when it was already almost 300 years old.

This bronze statue honors one of the leaders of the suffragette movement in the United Kingdom.

The underground sanctuary of a mysterious ancient cult.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

These giant yellow bowling pins seem to be defying gravity.

Designed to celebrate the queen's 40th birthday.

This church is said to have connections to the Knights Templars.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

World War II air raids over Bristol dislodged this fragment of tram line that ended up embedded in a churchyard.

A 15th-century whalebone is tucked away in an unassuming corner of this medieval church.