Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

An American ghost town hides along a side street in Scotland's capital.

A former medieval fortress, now home to Edinburgh Napier University, contains a rather risqué work of art.

Nestled among the living residents is the final resting place of an apothecary plague victim.

A free public golf course hides in plain sight in the heart of Scotland’s capital.

A rare remnant of an exposition that took place nearby at the end of the 19th-century.

This modern work of art was a refreshing addition to one of the oldest theatres in the city.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A building-sized painting of the renowned 19th-century American abolitionist.

The lasting remains of a bygone era of open-air meat markets.

A plaque commemorates a Victorian scientist's monumental discovery about waves.

This statue stands as a message against the ills of Apartheid.

A library where thousands of books explain how to avoid another Great Recession.

A recreation of pop art pioneer Eduardo Luigi Paolozzi's London studio.

This grave marks one of few bodies retrieved from the disastrous Franklin Arctic expedition.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

The beloved bard's garb is proudly displayed within a Freemason's hall.

Climb a set of vertiginous stone steps to the top of this impressive ancient edifice.

It's believed that this small church was connected to the Hagia Sophia via a secret tunnel.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

The most metal church of all time was built in record time because of an international, pious pissing contest.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

One of the newest mosques in a city filled with thousands.