A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A pair of connected skyscrapers form this symbolic gateway.

A miniature train-ride through Slovenia's largest cave system.

The "dragon babies" of southeastern Europe.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This massive subterranean fissure is known as the "underground Grand Canyon."

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

The best Tiki bar in Las Vegas.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

Yo, Adrian!

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

One part antique store, one part curiosities hodge-podge.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Continuing the tradition of the dime museum in style.

This eclectic, mosaic-clad home includes a bamboo ping-pong loft and a "Whispermaphones" intercom.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

This former industrial site has transformed into a community sculpture garden that hosts monthly Full Moon parties.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

At this deceptively beautiful beach, nothing is what it seems.