This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

An abandoned observatory in the middle of the Illinois prairie.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

This cemetery is all that remains of a school for "wayward" girls.

A sprawling outdoor museum filled with larger-than-life works of art.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

The face of a woman pushes its way through the earth.

This overgrown Illinois water park offers a whole new type of adventure.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

A swirling spectrum of stained glass dazzles visitors who enter this subway station.

The floating gallery illuminates the heart of Québec City's arts district.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

A tiny, picturesque island, where cows and wild horses wander around the houses.

Train tunnel running underneath Quebec City.

An abandoned town centered around a paper mill powered by a large waterfall.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

All that remains of the Whittall mansion are the ruins of the formal garden and its pergola, dedicated to the late Matthew J. Whittall by his widow.