An artistic tribute to the famous singer, just around the corner from where he was born.

A hands-off space for graffiti artists to hone and display their skills.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This 1920s Dutch barge is now a floating bookstore.

This 500-meter-long memorial pays tribute to the hundreds of thousands of lives lost to COVID-19 in the UK.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Catacombs turned marketplace.

A tongue-in-cheek arcade where the games are based on everyday life.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A small monument on the outskirts of Prague, where one of the bloodiest conflicts in the country's history was decided.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

The largest and best-preserved rotunda in Prague.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

An entertainment center in a huge transparent tent.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A Jenga-style cylindrical tower of books that appears to go on forever.