This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

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

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

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

The oldest surviving botanic garden in the United States.

The historic home still shows the scars from a little run-in with the British in 1813.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

The land is home to swimming ponies and a legendary 18th-century treasure.

The taxidermy remains of the most popular pony in children's literature.

These medicine cabinet staples are part of the museum's collection of everyday objects.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

This legendary city has been a tourist attraction for centuries.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This small-town pizzeria won the Hollywood lottery.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

These lush botanical gardens employ the most purrfect pest control force.