On Hawaii’s Big Island, in Ocean View, a pyramid bungalow is embedded into the earth. It’s listed for roughly $1.3 million.

The stately “Home Alone” house has hit the market for the second time since the 1990 classic premiered. It’s listed by the Dawn McKenna Group for $5.25 million.

The two-bedroom, two-bathroom property includes unique features like a floating staircase, a triangular terrace and a number of sculptural elements.

A six-acre castle estate blends medieval and modern elements — and it’s for sale in Barrington for $1.75 million.

This vibrant, orange stucco home in Palm Springs is even more colorful on the inside.

Advertised as a monolithic dome home, this rounded dwelling in Central Florida offers energy efficiency and weather resiliency.

This four-bedroom, three-bathroom house in Emmett, Idaho, is made from two adjoining metal silos and features views of Squaw Butte and Emmett Valley.

The crown jewel of architect Michael Reynolds’ sustainable vision, Vallecitos is a passive solar home within the Greater World Earthship Community, the world’s largest, legal off-grid subdivision.

This one-of-a-kind home was started in 1980 by contemporary artist Malcolm McCleod Brown.

Formerly rented by Jeff Bezos in the 1990s, this Bellevue abode is the true birthplace of Amazon.

Become the owner of your very own — functioning — lighthouse in the oceanside town of Yachats, Oregon.

Former Chapel on the Bay is a spiritual oasis transformed into luxury living. It’s listed for $699,000.

In Bridgeport, Connecticut, the seller transformed this one-of-a-kind, two-family home with her own artwork and renovations.

Any buyer would be “Lucky” to own this piece of pop history — Britney Spears’ childhood home has returned to the market.

This Midwest castle, built in the late 1800s, stands as an authentic reproduction of a Richardsonian Romanesque Scottish castle.

The castle is listed by Richard Bassford, leader of The Bassford Team at RE/MAX Concepts Bettendorf, for $700,000.