The seat of the lost Ryukyu Kingdom has survived numerous fires and wars over the centuries.

All that remains of Okinawa's royal temple are a restored gateway and a tall banyan tree.

A World War II battle site made famous by one man's heroic actions.

A huge musical instrument played by the ocean.

This contorting sculpture is the tallest in San Francisco.

An interim housing alternative to FEMA trailers that is designed for densely populated areas during recovery and rebuilding following a natural disaster.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

Tucked away behind the mansions of Mayfair, this picturesque garden is a hidden London treasure with a spooky past.

This overlooked street light once served as a KGB dead letter box.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

This ancient spring in central London was featured in a Peter Pan story.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This unassuming building produced some of the world's most famous bells.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

An inverted staircase above the entrance to the Bethnal Green Underground Station functions as a memorial for people who lost their lives during the worst civilian disaster in the U.K. during World War II.

A museum wholly devoted to juvenescence.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

These oversized fruit sculptures honor the contributions of the Windrush generation.

This medieval church tower has maintained its clockworks since the 16th century.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

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

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.