An impressive collection of massive radio satellites.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A unique collection of Western and Japanese-style graves.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

Hawai'i's oldest wooden house was shipped around Cape Horn from Boston in 1820.

This picturesque cottage was the site of Ulysses S. Grant’s final and perhaps most important campaign.

This twice-relocated "Usonian" home is among the smallest built by master architect Frank Lloyd Wright.

The Catskills retreat of naturalist writer John Burroughs.

This knick-knack-covered house (complete with a matching van) is a charming oddity in the middle of a modest downtown neighborhood.

This impeccably preserved farmstead is a time capsule of a Pulitzer Prize-winning novelist's life.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

One of the notorious Soviet leader Joseph Stalin's many summer retreats.

Hidden in the forest atop a long, winding driveway is this stately home.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

Originally dubbed "Retirement" by the Navy Commodore who built it in 1780, this beautiful mansion is now the centerpiece of a suburban community park.

A small brick parlor house and artist's studio located in the wilderness is surrounded by imposing suburban palaces.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

A Victorian-style home known as the “Castle on the Hill.”

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

Roman ruins top white travertine terraces formed by ancient hot springs.

Seven streams tumble over a cliff, resulting in this dazzling waterfall in the Nigerian rainforest.

A series of sculptures beneath the waves promote ocean conservation and support coral reefs.