The Bruno, named for its architect Robert Bruno, was formed in the ’70s from 110 tons of hand-welded, rust-colored steel. It’s currently up for auction.

In the 1920s, this historic building educated the children of Krakow, Wisconsin. Now, it’s move-in ready.

The Katy Hospital was built in Parsons, Kansas, in 1916. Now, two buildings from the historic institution are for sale, as is, for $50,000 each.

Firehouse No. 7 in St. Louis may look like, well, a firehouse. But inside, there’s over 7,000 square feet of luxurious living space.

This custom-designed Dublin, Georgia, ranch home is mostly underground, offering energy efficiency and natural insulation.

Aptly named The Rock House, this unique home is nestled around a 45-foot-tall section of one of Colorado’s beloved red rocks.

In addition to all the local lore, the LaLaurie Mansion features eight bedrooms and 10 bathrooms. 

Camp out under the stars in style in this two-bedroom, two-bathroom luxury treehouse on Orcas Island in northern Washington.

A well-maintained piece of Colorado history is on the market: the Pitkin Railroad Depot. It’s listed on Special Finds for $599,000.

This glass home is — basically — levitating over a Texas pond.

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 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.