A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

A monument celebrating the idea of reaching inaccessible places.

Mountain where Jesus was first tempted by the Devil.

Secret refuge and museum of the Duke of Florence.

Lavish royal estate punctuated with heated greenhouses.

Abandoned Air Force base that has fallen into disrepair.

Largest lake in Great Britain measured by surface area.

A decommissioned military complex that's now a modern industrial park.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Old Danish castle immortalized in Shakespeare's Hamlet.

See massive fossils that are over 200 million years old in northeastern Arizona.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

Extensive private collection of authentic Medieval devices used for human torture and execution.

Ancient burial grounds of the wealthy.

Living towers made of people that are now recognized by UNESCO.

Iron Age "bog person" preserved for over 2,300 years.

House built with over 60,000 glass bottles.

Former self-sufficient mental institution now a planned community.

Copenhagen's celebrated theme park and gardens.

Hindu temple of the dead home to hundreds of long-tailed macaques.

Decommissioned experimental solar facilities that pioneered solar energy technology.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.

This bridge was constructed from the rubble of the infamous Bastille.