The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

Slyly buy a shake in the Parker Meridien lobby.

A replica of a 7th-century church hides in plain sight in the middle of the concrete jungle.

New York City's only preserved family home from the 19th century.

The studio of influential composer Charles Ives is perfectly reconstructed, hidden in the back of the American Academy of Arts and Letters.

Become a prohibition rebel.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

A mosaic made of materials gathered from this Brooklyn community adorns the walls of this tunnel.

Home to a dizzying array of letterpress blocks with a rich history.

A Milwaukee museum provides an unsparing and ultimately empowering look at the Black American experience.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Proceeds from this colorful teahouse in a historic Atlanta neighborhood directly fund women’s education in northeast India.

A set of tall pillars and alcove-like rooms that are significant to the Miami people of Indiana.

Above an abandoned Underground station, this charming bookstore is home to strange antiquities and literary works.

This bookstore serves recipes from the cookbooks on sale.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.