A walk through the historic city center, under the streets of Seattle.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

A magical place that lets you play in and explore the world of Studio Ghibli.

Japanese national treasure originally built in 593 CE.

Peace Park and the Atomic Bomb Dome.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

The quintessential Japanese rock garden has existed for more than 500 years.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The 10,000 Torii shrine.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

Singapore's landscaping project is home to 18 incredible Supertrees.

A former French military respite turned jungle tourism hotspot.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

The Hudson River School comes alive at this palatial estate.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

Collapsing castle on the Hudson river was once the storage site of military surplus business.