The seventh largest spring in the world.

The remnants of sheer survival in Dublin's monastery district.

Pumpkin-like gargoyles and grotesques peer down from the rooftop of this unassuming apartment building in Illinois.

These sprawling mines once served as a source of plaster and today serve as a storage facility.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

University City's quirkiest resident lives in a park named after its first.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.