This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

One of the best-preserved wooden manor houses in Latvia, decorated with painted interior walls.

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

This once-abandoned mansion is now a dreamy event space.

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

Beach instrument turned bed and breakfast.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Frida Kahlo's childhood home, now a museum of her life and works.

A lush indoor jungle fills this bustling Madrid transportation hub.

Statue of death tucked in the University of Medicine courtyard.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This 11th-century structure is one of the oldest churches in Romania.

This Transylvanian church has changed its denomination four times.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

A spooky spot along the road where things mysteriously seem to move uphill by themselves.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Romania's only crater lake with water as pure as if distilled.