Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

This ambitious attraction was the brain child of a lake resort impresario, and built by the WPA.

An eight-sided home built during a brief octagon craze in the 1850s.

A historic neighborhood church is reborn as a psychedelic arts collective.

A wacky, UFO-shaped house in a suburban neighborhood.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

A building shaped like the Army Corps of Engineers logo, because why not?

A deserted hodgepodge of experimental structures designed by nearby university students.

This "synagogue" is not what it seems to be.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

The narrowest house in America is seven feet of pure spite.

A remote horde of architectural treasures fit for Indiana Jones.

This unusually circular centenarian barn became a Route 66 icon.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

This fairytale-like structure is the last turf church ever constructed in Iceland.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

According to folklore, Vermont's slanted windows were installed to keep witches from flying into the house.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This 19th-century former train station’s unusual roof shape earned it a rather witchy name.