A sprawling network of century-old subterranean catacombs lies beneath a nondescript suburban home.

The history of this futuristic crypt-turned-temple is as curious as its facade.

A collection of incredible clay crafts, complete with earthen skeletons and mermaids.

Meat and seafood are part of the frozen dessert flavors available at these legendary street stands.

One of the world's largest murals covers a large swath of homes in its hillside neighborhood.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

This "cursed house" features secret rooms, hidden vaults, and dark escape tunnels.

Stained glass windows bathe this botanical garden in cosmic light.

The development of this cliffside waterpark is representative of Mexico's history of co-op tourism developments.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

Mexico's astounding mummy museum with "the world's smallest mummy."

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

Right angles in the forests of Panama.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

With over 10,000 lights, this engineering marvel lights up the city after dark.

Georgia’s answer to Easter Island immortalizes the nation’s great poets, artists, and leaders in stone glory.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Fortified homes of highland warriors that are still in use today.

The decaying remains of a once-luxurious Soviet spa town.

These Stalin-era industrial 'death traps' hang lifeless above the city

You'll find just about anything in this funky Tbilisi flea market.

The first skyscraper to include a Ferris wheel built into the facade.