This former limestone quarry is now a subterranean wonderland of grand stonework.

The unexpectedly beloved remnants of a controversial thermal power plant.

The oldest house of worship in Palm Beach has a wonderful tropical garden.

A steamer run aground near Bimini lives a second life as a playground for scuba divers.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

This hidden workshop is filled with molds of France's most iconic sculptures.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

This prehistoric figurine is the oldest known realistic depiction of a human face.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.