Brooklyn's most iconic restaurant, resurrected.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Incredible sculptures inspired by obscure passages from the Bible.

An enormous image of Utah's salt flats made entirely from tape.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

Walk through the history of American pop culture.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

The Boston square dedicated to the dark poet who was born nearby.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

This single room has survived the centuries with almost no deterioration.

Just a man taking his prehistoric pet for a stroll.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

One of the world’s largest collections of paper memorabilia chronicles 4,000 years of papermaking.