Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Caves full of Buddhist statues, incredible rock formations and a deserted lagoon.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The famous author's cottage hideaway.

A legendary speakeasy bookstore returns from the brink.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Reforestation in action is the main attraction in this abandoned quarry.

A working monastery hidden away in Brooklyn once abutted the location of a former inebriate's home.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A small sculpture garden that provides a microcosmic representation of California.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

The world's northernmost ice hotel.

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

This woodland architectural installation acts as a camera obscura for the heavens.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

Living trees form the structure of an open-air palace.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

The private clubhouse for the members of the Academy of Magical Arts.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.