Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

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

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

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

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

The world’s first penitentiary, meant to be humane, drove men insane.

A rare view of a preserved Victorian science museum.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Pagan monument converted to Christianity with the population.

This small chapel is built of human bones and decorated with a golden skeleton.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

One man's remarkable private collection of art from around the world.

The best place in the world to buy tinned fish.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

This charming candle shop has been in business since 1789.

Climb inside an iron crystal magnified 165 billion times its normal size.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

A lush indoor jungle fills this bustling Madrid transportation hub.