An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Stunning wetlands ablaze with pink lotus flowers.

An Australian lake whose pink hue defies scientific explanation.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

A natural gas leak provides a flickering flame beneath a waterfall.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.