This Parisian café sticks almost exclusively to an ethos of reuse.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

You can row a boat through this ancient underground reservoir.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

A student driver's nightmare.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

The most northern place on the mainland of Great Britain.

A beautiful medieval bridge allegedly constructed by the Devil.

This unique sculptural clock transforms into a periscope every hour.

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

The world's first successful water-powered cotton mill paved the way for the factories of the British Industrial Revolution.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

This enormous spiral sculpture looks strangely out of place on the edge of a housing development.

Several land speed world records were shattered at this Welsh beach.

A poignant memorial shows the widows and children left heartbroken by the worst fishing disaster in Scottish history.

The world's first purpose-built motor racetrack was destroyed by the outbreak of two world wars.

This stack of stones honors a murdered 18th-century woman.

Some cheeky plantings brighten an old slipway on Scotland's Firth of Forth.

A great example of the inventive canal bridges that were deliberately split down the middle.

World's largest working waterwheel has been around for over 150 years.

A leafy, peaceful oasis nestled in the heart of Glasgow's busy south side.

A locomotive made from 185,000 bricks celebrates the town's pioneering railway history.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.