Places architect Wants to Go

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

The mansion home of author Edith Wharton.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

A steampunk wonderland that preserves America's history of industrial innovation.

The building that inspired Shirley Jackson's "The Haunting of Hill House."

Home to the Titanic Historical Society's collection.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

The oldest working mechanical clock in the world.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This former stomping grounds of the most eminent astronomers of the early 20th century.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

Very likely the only museum in the world that celebrates the glory of the humble banjo.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

An 1814 castle that hosts an exhibit of "explorabilia".

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

One man's love of sea life and art has turned his home into a temple of outsider island art.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.