The childhood home of Earth's alien chameleon is a humble Brixton flat.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

Artists and musicians now rule over this former rail station.

The final resting place to 300 Victorian-era pets hides inside the city park.

Remnants of a Victorian garden feature sitting in public woodland.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A mysterious artist-run cabinet of curiosities and library.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Portugal's National Pantheon has a history of curses, collapses and financial problems.