Ever wondered what famous London landmarks used to look like, back in the day?

This interactive graphic will let you see 14 different areas, including around the Houses of Parliament, Buckingham Palace and Covent Garden.

You can compare how things looked 100 years ago with how we're used to them now.

Covent Garden - old and new

Using black and white photos overlaying images from the exact same streets as they are now, it's a fascinating nostalgia trip.

A spokesperson for Expedia, who created the interactive piece, said: "We did this to obviously show much these contemporary, neon lit streets have been transformed in recent decades - but we also worked on this project in order to show just how many glimpses of untouched, historic beauty are still visible today.

Buckingham Palace in the past versus now

"What is really cool is that in some cases, you can actually line up and match the pictures up perfectly and see how many original pieces of architecture still remain today."

Have a go with the interactive widget below or see it even bigger here.