A beautiful art space and unusual mini-hotel hidden in the city center of Dnipro.

A collection of miniature, symbolic sculptures hides in plain sight across Kyiv.

This underground transport hub doubles as an art gallery.

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

One of Japan's most famous sights, the bridge was originally built in 1673.

Nine Gardens in one—with tea service.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

The original "capsule building" is a masterpiece of Metabolist architecture.

The 10,000 Torii shrine.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

The magical, mossy forest that inspired Princess Mononoke.

Every autumn, this hillside is ablaze with red summer cypress.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

On Japan's Tashirojima Island, cats are king.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A garden in Lisbon filled with giant porcelain creatures.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

A beautiful and abandoned New York subway station from 1904, complete with chandelier.