Niki Kay's User Profile - Atlas Obscura
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Philadelphia, Pennsylvania

Foucault Pendulum at the Franklin Institute

A daily replay of the experiment that proved the rotation of the Earth.
Essington, Pennsylvania

Lazaretto Quarantine Station

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.
New Hope, Pennsylvania

Bowman's Hill Tower

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.
Philadelphia, Pennsylvania

Philadelphia City Hall

This elaborate towering structure was once famed for its revolutionary height.
Philadelphia, Pennsylvania

Science History Institute

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.
Stewartstown, Pennsylvania

Rehmeyer's Hollow

The Home and murder site of the witch of Rehmeyers Hollow.
Philadelphia, Pennsylvania

Philadelphia Insectarium and Butterfly Pavilion

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.
East Stroudsburg, Pennsylvania

Delaware Water Gap National Recreation Area

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.
Flourtown, Pennsylvania

Morris Arboretum

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.
Philadelphia, Pennsylvania

The Barnes Foundation

Dr Barnes' $25 billion private collection of art and arboretum.
Latrobe, Pennsylvania

The Grave of Mister Rogers

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.
Philadelphia, Pennsylvania

Elfreth's Alley

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.
Philadelphia, Pennsylvania

Edgar Allan Poe National Historic Site

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."
Philadelphia, Pennsylvania

Philadelphia's Magic Gardens

A layered tribute to the work of mosaicist Isaiah Zagar.
Philadelphia, Pennsylvania

Mount Moriah Cemetery

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.
Philadelphia, Pennsylvania

Mütter Museum

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.
Philadelphia, Pennsylvania

Eastern State Penitentiary

World's first "penitentiary," meant to be humane, drove men insane.
London, England

World's Largest Potted Plant

The cedar tree in Highgate Cemetery earned its title by accident.
Brooklyn, New York

Brooklyn Theatre Fire Memorial

A mass grave for victims of one of the city’s worst fires.
Brooklyn, New York

Green-Wood Cemetery

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.