Enter this small nook and you'll be surrounded by 360 degrees of street art.

A six-ton wedding present for the King of the Scots.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

A sweet symbol marks the place where torturous executions were once carried out.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

Qatar's oldest market can trace its origins back more than a century.

The celebrated eyesore created by starry-eyed sweethearts.

This bridge was constructed from the rubble of the infamous Bastille.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

A huge enchanting public park just outside the ancient walls of Rome.

Underground monastery and fortress.

Ancient rock-hewn town that witnessed key events of Georgian history.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Unusual building appears to be haphazardly built from randomly piled bricks.

Luxury hotel turned into a refugee camp, then turned back into a luxury hotel.

A unique museum dedicated to culture and artistry of carpet weaving.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

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