Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Olfactory delights in San Francisco's Botanical Gardens.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A huge musical instrument played by the ocean.

A surrealist timepiece by the artist of melting clocks.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

This semi-secret storybook hedge maze is also the oldest garden in the city.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This home on a quiet suburban street is completely covered with vibrant mosaics.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

The unbelievably opulent home built for an infamous newspaperman.

This hidden green space is the city's second largest conservatory.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A student driver's nightmare.

This London plaque marks the spot where David Bowie's famous alien made his debut.

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

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

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

England's most notorious suicide spot.

Probably the smallest museum in the world, housed in a disused phone booth.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.