Dickeyville Grotto — Roadside & Outdoor Oddities in Chicago

Entry No. 69 — the Chicago file — filed under: roadside-oddity

Dickeyville Grotto

Between 1924 and 1930 Father Mathias Wernerus encrusted an entire churchyard in broken glass, seashells, colorful stone, and the cut-off tops of perfume bottles, building grottoes, arches, and fountains dedicated to both God and country. The shrines honor an unlikely mix of Jesus, Mary, Christopher Columbus, George Washington, and Abraham Lincoln. It went on to inspire a cluster of other found-object grottoes across Wisconsin.

The story

In 1918, a German-born Catholic priest named Father Mathias Wernerus took over Holy Ghost Parish in tiny Dickeyville, Wisconsin, and decided the parish grounds needed more than lawn and limestone. Starting around 1920 with embellished concrete flower urns and scaling up by 1924, Wernerus spent six years embedding whatever raw or recycled material he could get his hands on into thick wet mortar. He worked organically without blueprints, slathering concrete over iron framework and pressing in shattered tableware, perfume bottle tops, seashells, starfish, petrified wood, lead ore, and chunks of South Dakota rose quartz.

The result is a dense, glittering maze of outdoor grottos where religious devotion meets aggressive American civic pride. Flanking the main cave of the Blessed Virgin—which houses an Italian Carrara marble statue behind protective glass—are dedicated shrines to Jesus alongside monuments to George Washington, Abraham Lincoln, and Christopher Columbus. Cultural historians point out that this twin devotion was not just eccentric flair: during the 1920s, Midwestern anti-Catholic sentiment ran high, and encasing Lincoln and Washington in concrete was Wernerus's loud declaration that a Catholic could be 100 percent loyal to the flag.

Wernerus died in 1931, shortly after the main complex was finished, but his obsessive handiwork ignited a regional folk-art movement that rippled across Wisconsin, inspiring art environments like the Wegner Grotto in Cataract. You didn't hear it from us, but while the site draws tens of thousands of curious road-trippers a year, it remains an active parish churchyard—meaning you'll be examining thousands of pressed perfume caps while local parishioners quietly go about their Sunday routine.

What it's like

You'll pull up to the parish grounds right off Highway 151, where the grottos look like giant, jewel-encrusted coral reefs sprouting out of a Midwest lawn. Visiting is self-guided and informal: walk the paved footpaths around the Holy Ghost Church, get close enough to spot individual dish shards and quartz crystals embedded in the arches, and step up to the clear panels protecting the altar statues. There is no gate or ticket booth—the grounds are open every day during daylight hours—though the gift shop operates on a seasonal schedule. If you visit on a chilly weekday, you might have the whole concrete garden to yourself; just drop a donation in the slot before heading out.

The move: Slowly circle the glittering grotto together, spotting the bits of perfume bottle and seashell pressed into every surface, and leave a donation on your way out.

📍 Before you go Free, donations appreciated; grounds open year-round in daylight though the gift shop is seasonal. About 160 miles west of Chicago near the Iowa border.

Where: 305 W Main St, Dickeyville, WI 53808

Hours: Added 2026-06-23 — confirm current hours before you go.

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Pair it with

  • House on the RockPair this devotional concrete wonderland with Alex Jordan's sprawling, obsessive architectural complex 40 miles north in Spring Green for a full day of Midwestern visionary builds.
  • Forevertron / World of Dr. EvermorCombine Father Wernerus's glass-and-stone shrines with Tom Every's 300-ton scrap-metal sculpture park in North Freedom to experience Wisconsin's two iconic outdoor folk-art environments.
  • Leaning Tower of NilesRoute your return toward Chicago through Niles to compare Father Wernerus's patriotic concrete grottoes with another eccentric Midwestern concrete landmark, a half-scale replica of the Leaning Tower of Pisa.

Good to know

How much does it cost to visit the Dickeyville Grotto?

Admission to the outdoor grotto grounds is free year-round, though cash donations are appreciated to help maintain the structures.

Where is the Dickeyville Grotto located and how far is it from Chicago?

It is located at 305 W Main St in Dickeyville, Wisconsin, near the Iowa border—about 160 miles west of Chicago.

What are the operating hours for visiting?

The outdoor grounds are open daily during daylight hours for self-guided walks. The gift shop is seasonal, so confirm its current schedule before you travel if you plan to shop.

What materials were used to build the grottoes?

Father Wernerus and parishioners embedded concrete with crushed glass, perfume bottle tops, seashells, starfish, petrified wood, iron and lead ores, stalactites, and stones like rose quartz and agate.

Plan a visit & invite your people →

Further reading: Wikipedia · Official site · Roadside America · travelwisconsin.com · spacesarchives.org

last checked: 2026-06-23