Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

The subtle science of a master molecular gastronomist.

An enormous park-like oasis, full of famous Chicagoans' graves.

A lush green oasis in the middle of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Elevated freight railway turned wildly successful urban park.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

A walk through the historic city center, under the streets of Seattle.

New York's oldest magic store.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A layered tribute to the work of mosaicist Isaiah Zagar.

A giant Troll lurks under one of Seattle's oldest bridges.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A bizarre house filled with an astounding array of collections.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.