An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The rocks in this arid basin leave trails of movement behind them.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The most alien-looking place on Earth.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

An emerald-green grotto just a short trip from Austin.

The house where Rudyard Kipling wrote the Jungle Book is also the location of the first tennis court in Vermont.

The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

Industrial ruin decimated this tiny New England company town in a fashion no one saw coming… and even fewer remember today.

This "common-as-dirt" museum celebrates the glory of normalcy.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

The monument dedicated to Phineas Gage in the town where his accident happened.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.