Its columns were all carved from the same white oak tree.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Alexander Hamilton’s creation caused quite a bit of controversy.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

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

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

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tracing a path of more than four miles around a frozen lake, this is the longest skate trail in the United States.

Inside this old mill is a collection of images that will always remain frozen in time.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

A 150-square-foot masterpiece of American landscape art is the crown jewel of this library and art gallery in Vermont.

A bygone village occupation lives on via this quaint public chalkboard.

Journey through various trails to discover a land before time along the Chazy Fossil Reef.

Vermont's hills are alive with the sound of music at this historic hotel.