A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Nikola Tesla's former home contains an homage hidden from plain sight.

A very classy 1920s-era bar right in Grand Central Station.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Sniff the Titan Arum's rotting flesh.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

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

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

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

A forgotten "city of water" underneath the famous Trevi district.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

The historic Masonic Lodge in which the first-ever female Mason was initiated.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

This museum houses an imposing skeleton army comprised of creatures great and small.