An alternate history park where the Union Army loses the war... to dinosaurs.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Outsider art meets paleontology at this roadside reptile repository.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The oddly shaped, steam-spewing building is now an art studio and gallery.

This historic mansion was built as a symbol of love between a husband and wife.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Sniff the Titan Arum's rotting flesh.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.