Places Ennigaldi Wants to Go

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

Still standing despite its considerable slant, this tilted lighthouse has become a local symbol of resilience.

Few of the many visitors to this resort town know of its hidden Maya ruins.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

Gold Rush-era tombstones line the park's paths.

An island graveyard with spectacular views of the Caribbean.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

This massive, ancient stone was disassembled and then put back together again.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

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

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Museum dedicated to awful artwork.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

A tiny collection of traditional Japanese woodblock prints, open only when the owner feels like it.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

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

Visible below the waves are memorials to the city's Gold Rush dead.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.