Underground vaults of a former brewery beneath Brooklyn's Crown Heights are now used to ripen cheese.

This former water source for the City of Brooklyn is now a thriving natural wetland.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

One of only two remaining Victorian-era greenhouses in New York.

Read a book next to a Midtown waterfall.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

This abandoned mine offers a glimpse at what life was like for those who came to Alaska seeking Gold Rush riches.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

An abandoned Victorian-era mill in the middle of modern Manchester.

Once luxurious, these oceanfront beach homes have been left to succumb to the elements as the beach is slowly washed away.

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

This abandoned iron furnace was one of the first to use coke—a type of high-carbon fuel—to make iron.

This former POW camp was transformed into a Cold War missile installation.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.