This medieval monastery represents an architectural blend of eastern and western European culture.

The ruins of this medieval castle on a foggy hill tell the story of a once-mighty empire.

This mesmerizing medieval monastery-cave complex sits thousands of feet above ground overlooking a valley.

The fragmented remains of a massive public bath connected to the city's water supply.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This century-old confectioner's outlet store was plucked right out of the Seattle World's Fair.

Everything from miniature biblical scenes to life-sized statues are almond-based at this sweet and nutty gallery.

Try a classic Necco candy bar being resurrected in a small suburban shop.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

Nothing says indulgence like a 1,500-pound chocolate castle.

An eerie gravel road full of shards of red bricks leads to the ruins of a deserted factory.

A 200-year-old collection of oddities and medical paraphernalia.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

One of the largest caves in the world open to the public.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

Ukraine's oldest operating pharmacy now offers guests a fascinating walk through apothecary history.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.