The NBA player's elaborate former home is now a ghost of its old glory.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Once the most densely populated place in the world, this island is now a ghost town.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

This ancient tunnel is one of the most important examples of Roman hydraulic engineering in Spain.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

This cheeky restaurant has a serious devotion to lard sculptures.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Alien rock formations grown from the sands of an Australian national park.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Extraordinary sculpture garden created by an eccentric English poet.

A gargantuan crystal kingdom.

These azure waters were thought to lead to the Mayan Underworld.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.